Unit 1 - Chemical Reaction

Question 1

Define the following word; Chemisty

Answer 1

Chemistry is the study of matter, its properties, and its changes

Question 2

Define the following word; Matter

Answer 2

Anything that has mass and takes up space

Question 3

Define the following word; Pure Substance
Give an example

Answer 3

A pure substance is a substance made up by all the same particles. Ex. oxygen, gold

Question 4

Define the following word; Elements
Give an example

Answer 4

Elements are substances that cannot be broken down. Ex. hydrogen, Iron

Question 5

Define the following word; Compounds
Give an example

Answer 5

A pure substance containing two or more different elements in a fixed proportion. Ex. carbon dioxide, sodium choloride

Question 6

Define the following word and give a example; Physical property

Answer 6

A characteristics of a substance. Ex) melting point, boiling point, color, odor, solubility.

Question 7

Define the following word and give a example; Chemical property

Answer 7

A characteristic behavior that occurs when a substance changes to a new substance. Ex) hydrogen reacts with oxygen to produce water

Question 8

Answer the following question; What is the Periodic Table

Answer 8

The Periodic Table is an arrangement of elements by chemical and physical property

Question 9

Answer the following question; Who created the Periodic Table

Answer 9

The creator of the Periodic Table is Mencleleev

Question 10

Answer the following question; What are the horizontal rows called and what do they have in similar

Answer 10

They are called “Periods” and have the same numbers of Valence shells or the outer rings of the nucleus.

Question 11

Answer the following question; What are the vertical columns of elements called, and what do they have in similar

Answer 11

They are called groups or families, the columns are similar in chemical and physical properties

Question 12

Answer the following characteristics;
Alkali metal
group;
valance electron;
Luster;
Hardness;
reactivity;
Natural Form;
Ex;

Answer 12

group (1)
Valance electron; One
Lustre; Shiny
Hardness; Soft
Reactivity; Very reactive
Natural Form; Solid (impure)
Ex) Lithium Li, Sodium Na, Potassium K, Rb, Cs, Fr

Question 13

Answer the following characteristics;
group;
Alkaline Earth Metals
valance electrons;
luster;
hardness;
reactivity;
natural form;
Ex;

Answer 13

group (2)
Valance electrons; two
luster; shiny
hardness; soft (harder compared to alkali metals)
reactivity; very reactive (less than alkali metals)
natural form; solid (impure)
Ex; Beryllium Ba, Magnesium Mg, Calcium Ca, Sr, Ba, Ra

Question 14

Answer the following characteristics;
group;
The Noble Gas
valance electrons;
luster;
hardness;
reactivity;
natural form
Ex.

Answer 14

group (8) 18
Valance electrons; full
luster; dull
hardness; brittle
reactivity; unreactive
natural form; gas (pure)
Ex; Neon Ne, Helium He, Argon Ar, Krypton Kr, Ce, Rn, Os

Question 15

Answer the following characteristics;
group;
The Halogen Group
valance electrons;
luster;
hardness;
reactivity;
natural form;
Ex;

Answer 15

Group (7) 17
Valance electrons; seven
luster; dull
hardness; brittle
reactivity; very reactive
natural form; gas and liquid some solid
ex. Chlorine Cl, Bromine Br, I, At, Ts

Question 16

Answer the following characteristics;
group
Transition Metals
valance electrons; luster;
hardness;
reactivityl
natural form;
ex;

Answer 16

Group B
Valance electrons; varying
luster; Shiny
hardness; varies
natural form; varies (more so with acids)
natural form; solid (pure-ish)
ex. Gallium Ga, Gold, Au, Tungsten w, Mercury Hg

Question 17

Answer the following question; What side of the staircase are the metals on

Answer 17

Metals are on the left

Question 18

Answer the following questions; what side of the staircase are the non-metals are on

Answer 18

Non-metals are on the right

Question 19

Answer the following characteristics;
metals
luster;
malleability;
natural state;
reactivity with acids;
charge;
conductivity;
side of periodic table;
example;

Answer 19

luster; shiny
malleability; malleable
natural state; solid
reactivity with acids; react
charge; positive
conductivity; heat and electricity
side of periodic table; left
example; Iron, Gold, Titanium

Question 20

Answer the following characteristics;
non-metals
luster;
malleability;
natural state;
reactivity with acids;
charge;
conductivity;
side of periodic table;
example;

Answer 20

luster; dull
malleability; brittle
natural state; liquid/gas
reactivity with acids; unreactive
charge; negative
conductivity; insulator
side of periodic table; right
example; neon, oxygen, helium

Question 21

Answer the following question: List all the WHMIS symbols

Answer 21

Compressed Gas
Flammable and combustible material
Oxiding material
Poisonous and infecting material causing immediate and serious toxic affect
Poisonous and infectious material causing other toxic affect
Biohazardous infection material
Corrosive material
Dangerously reactive material

Question 22

Answer the following question: What are the types if hazard and degrees of hazard (pentagon, diamond, and triangle)

Answer 22

Types if hazard; Poisonous, flammable, explosive, corssive
Degree of hazard: danger, warning, caution

Question 23

Answer the following question: Ionic compound

Answer 23

Ionic compounds are formed between cation (metals and ammonium) and anion (Nonmetals and poly atomic) they are held together by ionic bonds and can have only two rations

Question 24

Answer the following question: Molecular compounds

Answer 24

Former between two nonmetals and are held together by covalent bonds. Because they share electrons, they can form multiple ratios

Question 25

Answer the following question: What are the characteristics of Ionic compounds (The cool one)

Answer 25

Solid Form
Very high melting point
easily dissolved
able to conduct electricity

Question 26

Answer the following questions:
What are the characteristics of Covalent compounds (The loser one)

Answer 26

Very low melting point
Often found in gas or liquid form
Not soluble
Doesn’t conduct electricity

Question 27

Answer the following questions: Alkanes

Answer 27

Carbon and Hydrogen compounds with only single bonds, they end in “ane” and the formula is X x 2 + 2

Question 28

Answer the following questions: Alcohols

Answer 28

hydrocarbons that replace one of the H at the end of OH (hydroxide), they end in “anal/anol” and the formual is X x 2 + 1 + OH

Question 29

Characteristics of Acids?

Answer 29

Conduct electricity in water
Sour taste
pH value lower than 7( the lower the ph, the stronger the acid!_
Produces salt and water when a base is added
Reacts with metals
Turns litmus red

Question 30

Characteristics of Bases?

Answer 30

Ends in OH (hydroxide)
Conducts electricity in water
pH value is higher than 7 (the higher the pH, the stronger the base!)
Produces a salt and water when a acid is added.
Does not react with metals
Turns litmus blue
Reacts with phenolphalein to turn to pink

Question 31

What are 5 signs of a chemical change?

Answer 31

Odor Produced
Light or Heat given off
Change in Color
Formation of Gas Bubbles
Formation of Solids

Question 32

What are the difference between Exothermic (Exoskeleton from COD) and Endothermic (End, like the End in Minecraft)

Answer 32

Exothermic releases heat into the surroundings, as result the temperature rises.
Endothermic absorbs the heat from the surroundings, as the result temperature drops.

Question 33

Define the following word: Synthesis

Answer 33

Becoming a couple
Two or more reactants making one product

Question 34

Define the following word: Decomposistion

Answer 34

Breaking up/Divorce
One reactants breaks apart

Question 35

Define the following word: Single Replacement

Answer 35

Cheating
An element + compound create a new element + compound

Question 36

Define the following word: Double Replacement

Answer 36

Both Cheating
The Braxton and Riley Switcha Roony
Two ionic compounds create two different Ionic compounds

Question 37

Define the following word: Combustion

Answer 37

Fuel + Oxygen = C02 + H20
Cumbust/CHO

Question 38

Define the following word:
Acid Base Reaction (Neutralization)

Answer 38

Fancy double replacement
Rich/Fancy people both cheating
Acid + Base = Water + Iondic