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PICLAB > M3 > Flashcards

M3 Flashcards

1
Q

represent chemical changes or reactions, and
they show the reactants, products and the relative amounts involved.

A

Chemical equations

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2
Q

the substances that react

A

Reactants

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3
Q

the substance formed called

A

Products

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4
Q

two reactants combine to give one product

A

Combination

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5
Q

A + B → AB

A

Combination

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6
Q

H2 (g) +O2 (g) → H2O(l)

A

Combanation

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7
Q

A single substance is decomposed, or
broken down, to give to or more different
substances.

A

Decomposition

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8
Q

AB→ A + B

A

Decomposition

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9
Q

2H2O2 (l) → 2H2O(l) + O2 (g)

A

Decomposition

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10
Q

One element reacts with a compound to replace
one of the elements of that compound, yielding a
different element and a different compound

A

Single replacement

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11
Q

A + BC → B + AC or A + BC → C + BA

A

Single replacement

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12
Q

2Zn(s) + 2HCl (aq) → 2ZnCl2(aq) + H2 (g)

A

Single replacement

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13
Q

Two compounds exchange partners with each
other to produce two different compounds.

A

Double displacement

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14
Q

AB + CD → AD + CB

A

Double displacement

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15
Q

NaCl(aq) + AgNO3(aq) → NaNO3(aq) + AgCl(s)

A

Double displacement

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16
Q

used to determine if a
liquid or solution is basic (alkaline) or
acidic.

A

Litmus paper

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17
Q

Neutral

A

Red litmus remains red
Blue remains blue

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18
Q

Red litmus turns blue
Blue litmus remains blue

A

Base

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19
Q

Red litmus remains red
Blue litmus turns red

A

Acid

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20
Q

2Mg + O2 → 2MgO

A

Combination

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21
Q

MgO + H2O → Mg(OH)2

A

Combination

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22
Q

CaCO3 (s) → CaO (s) + CO2 (g)

A

Decomposition

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23
Q

Weight Loss results to

A

Evolution of gass

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24
Q

Pag may compound na may hydroxide

A

Basic yan

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25
Q

Blue litmus turns to red

A

Acid

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26
Q

Red litmus turns to blue

A

Basic

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27
Q

Neutral Ph scale

A

7

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28
Q

Acidic ph scale

A

1

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29
Q

Basic ph scale

A

14

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30
Q

2Mg+ oxygen

A

2MgO

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31
Q

MgO+H2O

A

Mg(OH)2

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32
Q

Weightloss means

A

evolution of gas

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33
Q

yung product nagiging reactants

A

Decomposition

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34
Q

AgCl+O2

A

AgClO2

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35
Q

H2+FeSO4

A

Fe+H2SO4

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36
Q

ZnCl2

A

2Zn+2Cl

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37
Q

KBr+H2O

A

HBr+K2O

38
Q

Chemical reactions that can occur
in either direction are called

A

Reversible reaction

39
Q

Most reversible reactions

A

Do not go to completion

40
Q

In a reversible reaction, posibleng ____

A

Bumalik pa sila aa dati nilang form

41
Q

the capital letters represent

A

Formulas

42
Q

the lowercase letters represent

A

stoichiometric
coefficients

43
Q

Double arrow means

A

the reaction is reversible

44
Q

Chemical equilibrium exists when___

A

two opposing
reactions occur simultaneously at the same rate.

45
Q

Reversible reactions meaning

A

Chemical reactions that can occur in either direction

46
Q

Inidcated by arrows pointed in both directions

A

Reversible reactions

47
Q

When a stress is applied to a system at equilibrium, the equilibrium shifts to relieve the stress.

A

Le Chatelier’s principle

48
Q

How many types of stress

A

3

49
Q

Enumerate the 3 types of stress

A
  1. Change in concentration
  2. Change in Pressure/Volume (for gas olnly)
  3. Change in temperature
50
Q

Based on Le chatelier’s principle, Once a reacting system reached its equilibrium, ___

A

It will remain at its equilibrium until it is disturbed by a change of condition

51
Q

Based on Le Chatelier’s principle, If a system at equilibrium is disturbed by
changing its conditions (applying a stress),
____

A

the system shifts in the direction that
reduces the stress.

52
Q

Increasing the reactant , the reaction shift to the ___, favoring the _____ reaction, forming ____ products.

A

Right, Forward, More

53
Q

Mnemonics for Forward

A

RiFM

54
Q

Mnemonics for reverse

A

LeRL

55
Q

Decreasing the reactant, the equilibrium will shift to the ___&, favoring the ___ reaction, giving you _____ products.

A

Left, reverse, less

56
Q

Addition of water

A

Does not affect the equilibrium

57
Q

Releases heat

A

Exothermic

58
Q

Assume heat as product

A

Exothermic

59
Q

Assume heat as reactant

A

Endothermic

60
Q

Absorbs heat

A

Endothermic

61
Q

At high temperature

A

The equilibrium shifts to the right

62
Q

At low temperature

A

The equilibrium shifts to the left

63
Q

Will changes in pressure greatly affect the concentrations of solid & liquid?

A

No

64
Q

Changes in pressure cause —- in concentration of gases

A

Significant changes

65
Q

As the pressure increases

A

> The volume decreases
Shifts to the right
favors forward reaction

66
Q

when the pressure decreases
v?
d?
type?

A

> The volume increases
Shifts to the left
Favors reverse reaction

67
Q

Adding a ___ to a system changes
the rate of the reaction (speeds up),

A

Catalyst

68
Q

The catalyst does

A

Speeds up reaction but does not affect/ shift the
equilibrium in favor of either
products or reactants.

69
Q

The point in which the reactants and
products do not change in time.

A

Chemical equilibrium

70
Q

the rates of
forward and reverse reaction are
equal to reactants and products being
created at the same rate.

A

Equilibrium

71
Q

3 ways that reactions rates can be increased

A
  1. Changes in concentration
  2. Changes in pressure
  3. Changes in temperature
72
Q

If a system at equilibrium is disturbed
by changing its conditions (applying a
stress), the system shifts in the
direction that reduces the stress.

A

Le Chatelier’s principle

73
Q

Increase of pressure, decrease of volume, ___, ___

A

Right, Forward

74
Q

Pressure decrease, volume increase, ____, ____

A

Left, reverse

75
Q

Changes the rate

A

Catalyst

76
Q

refers to the amount of reactants converted to
produce in a unit of time

A

Rate of reaction

77
Q

The study of rates of chemical reactions

A

Chemical Kinetics

78
Q

4 factors affecting the rates of reaction

A
  1. Nature of Reactants
  2. Concentration of Reactants
  3. Presence of Catalyst
  4. Temperature
79
Q

A more reactive metals can displace the ___

A

Less reactive metal

80
Q

Substance that speeds up chemical reaction

A

Catalyst

81
Q

A more reactive metal can

A

Displace the less reactive metal

82
Q

Catalyst does noy affect

A

does not affect equilibrium
does not affect the amount of product

83
Q

Kl is a

A

Catalyst

84
Q

Positive catalyst

A

Substance which increases the rate of reaction

85
Q

Negative catalyst

A

Substance that decreases the rate of reaction

86
Q

When you increase the temperature of any solution,

A

it increases the average kinetic energy of the components

87
Q

As tge kinetic energy increases

A

the components move faster & collide into each other more frequently in a given amount of time

88
Q

The increase in activity & energy

A

Increases the reaction rate to arrive at the end product more quickly

89
Q

Mnemonics for the factors of rates

A

NCPT

90
Q

exists when two opposing
reactions occur simultaneously at the same rate

A

Chemical equilibrium

91
Q

Pag pressure onti lang epekto ang epekto sa

A

Solid & liquid

92
Q

Reactiveness

A

Potassium
Sodium
Calcium
Magnesium
Aluminum
Carbon
Zinc
Iron
Tin
Lead
Hydrogen
Copper
Silver
Gold

PICLAB (9 decks)

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