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final exam Flashcards

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1
Q

is a wild tree that grows up to 25
meters in the lowland forests of
Southeast Asia

A

batwan

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2
Q

s
somewhat round in shape, around 4 cm
in diameter, greenish in color which
turned yellowish when mature.

A

batwan fruit

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3
Q

. They
have a firm outer covering and contain a
very sour pulp with 4-6 seeds.

A

batwaN FRUIT`

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4
Q

It has a
sour taste but not acidic to the stomach
like vinegar and calamansi. This souring
agent is used by Hiligaynons, natives of
Panay, Guimaras and Iloilo

A

batwan fruit

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5
Q

are a Visayan ethnic group
whose primary language is Hiligaynon, an
Austronesian language of the Visayan
branch native to Panay, Guimaras, and
Negros. O

A

hiligaynon people/panayan peopl

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6
Q

The majority of Ilonggos are __________, specifically
Roman Catholics, while some minorities are
Aglipayans, Protestants, and Muslims. Interestingly,
to this day, some Christian practices are still mixed
with old Pagan Ilonggo traditions.

A

Christians

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7
Q

As an example, Ilonggos would bathe their Santo
Niño both as a ritual to summon ____and as a means
of inviting good luck. This is due largely to Hiligaynon
faiths having been eliminated during the Spanish era
and hence surviving as Folk Catholicis

A

rain

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8
Q

widely used in cooking as souring
agent in Negros and Panay islands in the
Visayas

A

batuan

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9
Q

is the Ilonggo’s favorite souring
agent for famous dishes KBL (kadyos, baboy,
langka), cansi, pinamalhan and sinigang. You
can use _______ for any recipe which uses a
souring agent

A

batuan

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10
Q

what are the diff. ph indicators?

  1. pH paper
  2. l_____ paper
  3. pH m______
  4. pH Liquid indicators
A

litmus
meter

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11
Q
  • is a chemical reaction between
    an acid and a base that forms salt
    and water
A

neutralisation

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12
Q

s a solution that can resist pH change upon the addition of
an acidic or basic components.

A

buffer

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13
Q

It is able to neutralize small
amounts of added acid or base, thus maintaining the pH of the
solution relatively stable.

A

buffer

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14
Q

his is important for processes and/or
reactions which require specific and stable pH ranges.

A

buffer

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15
Q

s have a working pH range and capacity which dictate how
much acid/base can be neutralized before pH changes, and the
amount by which it will change

A

buffer

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16
Q

is a water solvent-based solution which
consists of a mixture containing a weak acid and the conjugate
base of the weak acid or a weak base and the conjugate acid of the
weak base. They resist a change in pH upon dilution or upon the
addition of small amounts of acid/alkali to them

A

buffer solution

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17
Q
  1. Which concentration unit is used when calculating colligative properties relating to boiling point elevation?
    *

molality
mole fraction
molarity
weight percent

A

molality

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18
Q
  1. The relationship between the vapor pressures of solution components and the concentrations of those components is described by _______________.

Charles’ Law
Boyles’ Law
Raoult’s Law
Gay-Lusaac’s Law

A

Raoult’s Law

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19
Q
  1. Which among the following is not a colligative property?

boiling point elevation
chemical solubility
freezing point depression
Vapor pressure lowering

A

chemical solubility

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20
Q
  1. On what do the colligative properties of solutions depend?

chemical nature of solute
concentration of solute molecules
number of moles of solute
physical nature of solute

A

number of moles of solute

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21
Q
  1. Which of the following refers to the property of the solution that depends on the number of solute particles present?

Chemical Property
Physical Property
pH property
Colligative Property

A

colligative property

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22
Q
  1. If the vapor pressure decreases in a nonelectrolyte solution, the boiling point of the solution tends to ____________.

decrease
increase
remain as is
none of the above

A

increase

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23
Q
  1. What is Kf in ΔTf = Kfm?

Freezing point depression
Freezing point constant
Boiling point elevation
Boiling point constant

A

Freezing point constant

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24
Q
  1. Which of the following concentrations is directly proportional to the freezing point?

percent concentration
mole fraction
molality
normality

A

molality

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25
Q
  1. Which of the following statements best describes the rate of a chemical reaction?

It is the volume in which the reactant particles can occupy.
It is the speed in which the reactants are converted into a product.
It is the amount of temperature needed to start a chemical reaction
It is the pressure exerted by the reactants during the process of chemical reaction.

A

It is the speed in which the reactants are converted into a product.

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26
Q
  1. What do you call the minimum amount of energy required for a chemical reaction to occur?

Kinetic energy
Exothermic energy
Endothermic energy
Activation energy

A

Activation energy

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27
Q
  1. A freshly exposed surface of metallic sodium tarnishes almost instantly if exposed to air and moisture is an example of ________________]

The speed of how a product is formed.
The speed of how a reactant is used up.
The effect of increase of the concentration to a chemical reaction.
The effect of the increased of the surface area to a chemical reaction

A

The speed of how a product is formed.

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28
Q
  1. Sugar granules dissolve faster that sugar in cubes is an example of _________

The speed of how a product is formed.
The speed of how a reactant is used up.
The effect of increased of the concentration to a chemical reaction.
The effect of the increased of the surface area to a chemical reaction.

A

The effect of the increased of the surface area to a chemical reaction.

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29
Q
  1. For collisions to be successful, reactants must have _________________.

proper orientation
sufficient activation energy
sufficient heat of reaction
proper orientation and sufficient activation energy

A

proper orientation and sufficient activation energy

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30
Q
  1. A catalyst increases the rate of a reaction by ______________.
    *
    increasing the concentration of reactant(s).
    decreasing the concentration of reactant(s).
    increasing the activation energy of the overall reaction
    decreasing the activation energy of the overall reaction
A

decreasing the activation energy of the overall reaction

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31
Q
  1. The catalyzed reaction has a _____ activation energy and thus causes a __________reaction rate.

higher, lower
lower, higher
higher, higher
higher, steady

A

lower, higher

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32
Q
  1. Which of the following describes a catalyst?
    *

A reactant in a chemical reaction
A product in a chemical reaction
A substance the speeds up a reaction without being consumed
A substance that increases the energy of the product

A

A substance the speeds up a reaction without being consumed

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33
Q
  1. Rate of a chemical reaction increases with a rise in the temperature of the reactants because _____________________.

Heat increases the surface area of particles available for collision.
Heat makes the molecules react more frequently by increasing their size.
Heat increases the concentration of the reactants by evaporating some of them.
Heat makes the particles of the reactants move more rapidly, which enhances the possibility of collisions.

A

Heat makes the particles of the reactants move more rapidly, which enhances the possibility of collisions.

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34
Q
  1. Enzymes are examples of _________________.

Catalysts
Biological elements
Chemicals that increase surface area of reactants
Molecules that increase concentration of reactants

A

Catalysts

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35
Q
  1. Which of the following reactions will delay the decay of fruit?

putting it in boiling water
cutting it to small pieces
placing it in the refrigerator
not washing it with water before storage

A

placing it in the refrigerato

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36
Q
  1. Diluting sugar in a warm water compared with diluting it in a cold water is an example of _____________.

Concentration
Pressure
Temperature
Use of a catalyst

A

Temperature

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37
Q
  1. More bubbles appear when a concentrated solution of hydrochloric acid is added to a magnesium strip than when a dilute solution of the acid is added is an example of ____________________.

Concentration
Pressure
Temperature
Use of a catalyst

A

Concentration

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38
Q
  1. Which process takes part when an acid and a base combine?
    *

acidification
neutralization
concentration
precipitation

A

neutralization

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39
Q
  1. From Question no. 28 ( answer: neutralization) , what will be the product/s?
    *

salt and water
hydronium and hydroxide
salt
another acid and a bas

A

salt and water

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40
Q
  1. Which of the following is an example of a weak acid?

Hydrochloric acid
Sulfuric Acid
Acetic Acid
Nitric Acid

A

Acetic Acid

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41
Q
  1. What is the range covered by the pH scale?

-10 to 14
1 to 14]
0 to 100
0 to 50

A

1 to 14]

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42
Q
  1. Where would you expect to find an acidic result on the scale?

in the middle number
towards the higher numbers
towards the lower numbers
away from the lower numbers

A

towards the lower numbers

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43
Q
  1. What does pH mean?

Power on Hydrogen
Potential of Hydrogen
Potential of Helium
Power of Helium

A

Potential of Hydrogen

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44
Q
  1. Neutral solution have a pH of ____________.

0
7
14
no pH

A

7

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45
Q
  1. What is meant when an acid is referred to as monoprotic?

acids having two dissociate protons
acids having three dissociate protons
acids having no dissociate proton
acids having one dissociate proton

A

acids having one dissociate proton

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46
Q
  1. Which is NOT a property of a base?
    *

slippery
sour
turns red litmus to blue
bitter

A

sour

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47
Q
  1. Which of the following is the correct definition for a Bronsted-Lowry acid?

any substance that inonizes when it dissolves in water to give the H+ ion.
any substance that can donate a proton, h+ ion to a base
any substance that can donate a pair of nonbonding electrons.
any substance that can accept a pair of nonbonding electrons.

A

any substance that can donate a proton, h+ ion to a base

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48
Q
  1. A solution with a pH of 9.6 would be ___________.
    *

acidic
basic
neutral
both acidic and basic

A

basic

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49
Q
  1. Which of the following is NOT a pH indicator?

phenolphthalein
pH paper
litmus paper
titration

A

titration

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50
Q
  1. Which of the following is a solution that can resist pH change upon the addition of an acidic or basic
    components?

buffer solution
acid-base solution
pH solution
aqueous solution

A

buiffer solution

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51
Q

refers to the property of the solution that depends on the number of solute particles present

A

Colligative property

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52
Q

(T or F). The normal boiling point of a liquid is the temperature at which its vapor pressure is 1.01 x105 Pa.

A

true

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53
Q

(T or F) A liquid boils when its vapor pressure is equal to its atmospheric pressure (1.01 x 105 Pa)

A

true

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54
Q

If the vapor pressure _________ in a nonelectrolyte solution, the boiling point of the solution tends to _________.

A

decreases, increase

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55
Q

The increase in the boiling point temperature is called

A

boiling point eleveation

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56
Q

is used in this equation since it relates to mole fraction and, thus, particles of solute and temperature do not affect it.

A

molality

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57
Q

To determine the boiling point elevation of a solution, we use equation;

∆Tb = ____
Where:
Kb = the ____boiling point elevation constant
m = the _______of the solute in the solution

A

Kbm
molal
molality

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58
Q

The _________ _______of a solution is the temperature at which its vapor pressure equals that of the pure solvent, that is, when solid solvent and liquid solution are in equilibrium.

A

freezing point

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59
Q

occurs because the vapor pressure of the solution is always lower than that of the solvent, so the solution freezes at a lower temperature; that is, only at a lower temperature will solvent particles leave and enter the solid at the same rate.

A

freezing point depression

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60
Q

The freezing-point depression (∆Tf) is defined as the freezing point of the pure solvent (Tf°) ______ the freezing point of the solution (Tf):

A

minus

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61
Q

The pressure exerted by the gas that is in dynamic equilibrium with its liquid in a closed system at a specified temperature is called

A

vapor pressure

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62
Q

. A pure liquid has ________ vapor pressure than the vapor pressure of a solution.

A

greater

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63
Q

The greater the concentration of solute present the _________the vapor pressure lowering.

A

greater

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64
Q

Vapor pressure lowering depends on the number of ______particles that have been dissolved.

A

solute

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65
Q

The partial pressure exerted by any component of an ideal solution is equal to the vapor pressure of the pure component multiplied by its mole fraction in the solution.

A

Raoult’s law:

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66
Q

The relationship between the vapor pressures of solution components and the concentrations of those components is described by

A

Raoult’s law:

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67
Q

is one whose vapor pressure is negligible (P* ≈ 0), and so the vapor pressure above a solution containing only nonvolatile solutes is due only to the solvent

A

nonvolatile substance

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68
Q

The movement of a solvent through a semipermeable membrane from a region of low concentration to a region of high concentration is called

A

osmosis

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69
Q

(T or F) If a semipermeable membrane is placed in between two solutions of different concentrations, the solvent will flow from a region of a less concentrated solution to a more concentrated region.

A

true

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70
Q

(T or F) The movement of the solvent continues until the concentration on both sides are the same.

A

true

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71
Q

The pressure required to counter, not sustain, osmosis is known as

A

osmotic pressure.

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72
Q

To prevent the flow of solvent molecules through a semipermeable membrane, __________ must be applied to the solution

A

pressure

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73
Q

Diffusion-driven transfer of solvent molecules through a semipermeable membrane is a process known as

A

osmosis is

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74
Q

Solvent molecules will diffuse across the membrane in both directions. Since the concentration of solvent is greater in the pure solvent than the solution, these molecules will diffuse from the solvent side of the membrane to the solution side at a faster rate than they will in the reverse direction. The result is a net transfer of solvent molecules from the pure solvent to the solution.

A

osmotic pressure/osmosis

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75
Q

A substance behaves as an ____when it donates a proton (H+) to a base

A

acid

76
Q

A substance behaves as a _____ when it accepts a proton from an acid

A

base

77
Q

An acid-base reaction involves exchange of protons from an ______ to a ______

A

acid to a base

78
Q

In an aqueous solution of hydrogen chloride(g), nearly all the hydrogen chloride is present as ____

A

ions

79
Q

Acid-base reactions are (not restricted/restricted) to aqueous solutions

A

not restricted

80
Q

is two species that differ by a proton (H+)

A

A conjugate acid-base pair

81
Q

When an acid donates a proton, the resulting species is its conjugate ____.

A

base

82
Q

When a base accepts a proton, the resulting species is its conjugate _____.

A

acid

83
Q

(T or F) When acids react with water, hydronium (H3O+) ions are produced.

A

true

84
Q

( T or F)When bases react with water, hydroxide (OH-) ions are produced

A

true

85
Q

Some substances can donate or accept protons depending on what they are reacting with
They can behave as either an acid or a base

A

Amphiprotic substances

86
Q

(T or F) Water can act as either an acid or a base, depending on the solute present

A

true

87
Q

If the solute is a stronger acid than water, than water will react as a ______. If the solute is a stronger base than water, then water will react as an ______

A

base, acid

88
Q

can donate only one proton

A

monoprotic acids

89
Q

These acids include hydrochloric acid (HCl), hydrofluoric acid (HF), nitric acid (HNO3) and ethanoic acid (CH3COOH)

A

monoprotic acids

90
Q

__________ can only donate the hydrogen that is part of the highly polar O-H bond despite having four hydrogen atoms. This hydrogen atoms is called the ________

A

Ethanoic acid,acidic proton

91
Q

can donate more than one proton. The number of hydrogen ions an acid can donate depends on the structure of the acid.

A

Polyprotic acids

92
Q

do not donate all of their protons at once, they do so in steps when reacting with a base

A

Polyprotic acids

93
Q

can donate two protons (eg: sulphuric acid (H2SO4) and carbonic acid (H2CO3)

A

Diprotic acids

94
Q

can donate three protons (eg: phosphoric acid (H3PO4) and boric acid (H3BO3)

A

tripotic acids

95
Q

is described as a strong acid in water because it readily donates a proton and so this stage occurs almost to completion

A

Sulfuric acid

96
Q

A ________ (reversible) arrow indicates that an incomplete reaction occurs.

A

double

97
Q

is a weak acid in water

A

phosporic acid

98
Q

describes the strength of an acid as its ability to donate hydrogen ions to a base

A

The Bronsted-Lowry theory

99
Q

is a measure of its ability to accept hydrogen ions from an acid

A

The strength of a base

100
Q

donate protons easily and ionise completely in water

A

strong acids

101
Q

Solutions of _______ acids contain ions, with very little unreacted acid molecules remaining

A

strong

102
Q

The single reaction arrow () in these equations indicates that the ionisation reaction is ______

A

complete

103
Q

only partly ionise to form hydrogen ions in water

A

weak acids

104
Q

The partial ionisation of a weak acid is shown in an equation using ___________ (double) arrows

A

reversible

105
Q

accept protons easily

A

strong bases

106
Q

partially ionise in water to make hydroxide ions

A

Weak bases

107
Q

is an example of a weak base

A

ammonia

108
Q

The ________ an acid, the _______is its conjugate base.

A

stronger, weaker

109
Q

The stronger a ______, the weaker is its conjugate ______

A

base, acid

110
Q

___________ and ______describe the amount of acid or base dissolved in a given volume of solution

A

concentrated and dilute

111
Q

is a strong acid because it readily donates a proton.

A

HCl

112
Q

are substances that change colour when they are added to acidic or alkaline solutions.

A

indicators

113
Q

(T or F) Litmus, phenolphthalein, and methyl orange are all indicators that are commonly used in the laboratory.

A

true

114
Q

is a mixture of a variety of other indicators and can be used to measure the approximate pH of a solution.

A

vUniversal indicator

115
Q

THE ________ of acids and bases is usually expressed in units of mol/L or M also known as molarity.

A

concentration

116
Q

The most convenient way of preparing a solution of a dilute acid is by mixing concentrated acid with water. This is known as

A

dilution

117
Q

You can calculate the concentration of a dilute acid if you know the:
V_________ of the concentrated solution
Molarity of the concentrated solution
Total volume of _____added

A

VOlume
water

118
Q

In the laboratory, you can prepare solutions of a base of a required concentration b\y:

D_____ a more concentrated solution or

Dissolving a weighted amount of the B______ in a measured volume of water (see next slide)

A

dilluting
base

119
Q

Ionic compound separates into ions in solution

Ions already exist before dissolving in water (in lattice)

A

Dissociation

120
Q

Molecular compound separates into ions in solution
Production of new ions, specifically, hydrogen ions, which were not in their ionic state

A

Ionisation

121
Q

Aqueous solution substances are written as ions

A

Dissociated ionic equation

122
Q

Does not include spectator ions (ions that do not change stage)

A

Ionisation equation

123
Q

The products of a reaction of an acid with a metal hydroxide are an ionic compound called

A

salt and water

124
Q

Soluble metal oxides, such as NaOH, dissociate in water to form ____ cations and hydroxide ions

A

metal

125
Q

consist of the positive cation from the base and the negative anion from the acid

A

salts

126
Q

are balanced with respect to both the number of atoms of each element and charge

A

ionic equations

127
Q

are ions that are dissolved in the solution and are not involved in the reaction

A

spectator ions

128
Q

(t or f) If a reactant or product is a solid, liquid or gas, it cannot be written as ions and it must be present in the ionic equation

A

true

129
Q

is a covalent molecular substance that does not ionise to and significant extent and is written as H2O(l)

A

water

130
Q

If a solution of a metal hydroxide is added to a solution of an acid, the hydroxide ions will react with the __________ ions

A

hydronium

131
Q

The acid and base are said to have been neutralised at the point when all the hydroxide ions have reacted with all the hydronium ions forming ______(_____)

A

water (H2O)

132
Q

The ____________ of buildings and statues is due to part of the reaction between acid rain and the carbonate minerals in the stone

A

weathering

133
Q

The products of a reaction of an acid with a metal __________ carbonate are also carbon dioxide (gas), salt and water

A

hydrogen

134
Q

can be used to detect the presence of carbonate salts.

A

acxids

135
Q

is produced when an acid is added to carbonate

A

carbon dioxide

136
Q

is a simple test used to confirm the presence of CO2(g)

A

limewater test

137
Q

is a saturated solution of Ca(OH)2
It turns milky white due to the precipitation of CaCO3

A

limewater

138
Q

When dilute acids are added to main group metals and some transition metals, _______of hydrogen gas are released and a salt is formed

A

bubble

139
Q

Reactive metals include ________, magnesium, iron, zinc but not ______, silver or gold.

A

calcium, copper

140
Q

acid + metal hydroxide =

A

salt + water

141
Q

acid + metal carbonate =

A

salt + water + CO2

142
Q

acid + metal hydrogen carbonate =

A

 salt + water + CO2

143
Q

acid + reactive metal =

A

 salt + hydrogen gas

144
Q

acid + base =

A

 salt + water

145
Q

is a measure of hydrogen ion concentration.

A

pH

146
Q

It is used to describe the acidity or basicity of a substance, that a pH = 7 is neutral (neither acidic, nor basic.)

A

pH

147
Q

The letters pH stand for the “power of the hydrogen ion” and was originally defined as the _______ logarithm of the hydrogen ion concentration

A

negative

148
Q

Each integer value increment represents a factor of

A

10

149
Q

All substances are composed of millions of tiny particles in constant motion. These particles are colliding with each other constantly in any substance. All collisions between particles do not result in a reaction.

A

The Collision Theory

150
Q

Two Factors that determine whether a reaction will occur between two particles that are colliding:

Substances or particles of reactants must _________ collide with enough energy.
Substance or particles must come in contact or collide in the correct ___________.

A

physically
orientation

151
Q

states that reacting substances must come in contact (collide) with enough activation energy, and in the correct orientation, so that their electron shells can rearrange to form the products of the reaction.

A

The Collision Theory

152
Q

are collision of particles that result into a chemical reaction.

A

effective collisions

153
Q

For an effective collision to happen particles of the reactant must have at least the minimum energy required to break the bond of the reactants, known as the

A

activation energy

154
Q

(T or F) If the reactant particles do not have the required activation energy when they collide, they would just bounce off each other without reacting.

A

True

155
Q

When two particles collide, sometimes a chemical reaction occur, which means the bonds between two or more particles are broken and reformed, creating one or more new substances

A

chemical reactrions

156
Q

The substances or particles that enter and is changed in the chemical reaction are called ___________ and the substances that are formed are called ____________ .

A

reactants, products

157
Q

is the speed at which the product is produced in a chemical reaction.

A

rate of reactions

158
Q

To increase the rate of chemical reaction, the number, force, and effectiveness of collision between particles must be ________

A

increase

159
Q

The more collisions between particles of reactants in a given period of time, the ________the rate of reaction will be.

A

faster

160
Q

Factors Affecting Chemical Reaction Rate

refers to the minimum energy required for a reaction to take place.

A

Activation Energy

161
Q

Factors Affecting Chemical Reaction Rate

When a collision provides energy equal to or greater than the activation energy, _______can form.

A

product

162
Q

Factors Affecting Chemical Reaction Rate

If the particles have energy _______ than the activation energy, the collision is not effective, and they just bounce off each other unchanged.

A

lesser

163
Q

Factors Affecting Chemical Reaction Rate

– refers to how hot or cold a certain substance is.

A

temperature

164
Q

Factors Affecting Chemical Reaction Rate

Increasing the temperature of the reactants will also _________the rate of reaction between reactants because of the following.

A

increase

165
Q

( T OR F ) Kinetic energy of particles will increase; thus, movement of each particles will also increase, which at the same time will increase the chances of collision between particles.

A

true

166
Q

( T OR F ) Activation energy of particles will increase; thus, increasing its ability to break the bonds between each particle, which at the same time will also increase the chances of collision between particles.

A

true

167
Q

Temperature in Chemistry is generally defined as the

A

Average Kinetic Energies

168
Q

This property can be measured in all states of matter, usually using a thermomter

A

temperature

169
Q

It can also be assumed that the higher the temperature, the ______ these particles are moving. In effect, within a confined space, these ____-moving particles would collide with each other more frequently, _______ the ______ of collisions that are effective

A

faster, fast, increasing, fraction

170
Q

( t or f) increasing the temperature would result in more frequent collisions between the particles which would then lead to an increase in the rate of the chemical reactions

A

true

171
Q

refers to the number of particles of a substance dissolved in a given amount of solvent

A

concentration

172
Q

The reactant ________ are often calculated in liquid solutions in the form of ___________ (__)

A

concentrations, molality (M)

173
Q

the higher concentration would result in having ____ particles that could be available in collision. Thus, hacing more collisions would result in a ________ chemical reaction

A

more, faster

174
Q

(T or F) Increasing the concentration in a chemical reaction will increase the chances of collision between particles, which in return will also increase the rate of reaction between reactant.

A

true

175
Q

C____________ or pressure indicates the number of particles per unit volume.

A

concentration

176
Q

. Particles will collide more frequently when there are _______ particles per unit volume.

A

more

177
Q

Ways you can increase the concentration of the particles in a chemical reaction
.
1. Increasing the C___________or the number of particles use in a mixture or a solution.
2. Increasing the P__________ in gaseous chemical reaction by adding more ____particles
3. increasing the pressure in gaseous chemical reaction by decreasing the ________or space the particles can move in.

A
  1. concentration
  2. pressure, gas
  3. volume
178
Q

This shows that when the reactant is _______ in size, it has an _______ surface area to volume ratio which will increase the collision between each reactant particles.

A

small, increase

179
Q

is defined as the area of the reactant particles that are exposed to collisions. this is especially evident in most reactions involving solids.

A

surface area

180
Q

the ____ surface area would result in more collisions happening

A

higher

181
Q

_________ increases the movement of particles which will increase collision between particles.

A

stirring

182
Q

These reactions when place under a light reacts _______ than those that are place in the dark.

A

faster

183
Q

Some chemical reactions are affected by the amount of _____ they are exposed to

A

light

184
Q

are substances that can be used to change the rate of the reaction without being consumed during the process. Thus, it would not change the desired products afterward.

A

catalyst

185
Q

Catalyzed vs Uncatalyzed Reaction

The amount of product of both reaction is the same but the speed of the process of reaction is different. _________reactions produce the same amount of product but at a faster rate.

A

Catalyzed

186
Q

For a catalyst to increase the speed of the reaction it has to _______ the activation energy, or the minimum amount of energy needed to start a chemical reaction

A

lower

187
Q

. A catalyst can lower the activation energy use in a reaction by:

_____________ the orientation of the particles in a reactant in such a way that breaking their bonds would be easier.
Forming an intermediate reactant called _____________ complex.

A

rearranging
activated

gen chem (2 decks)

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