Chemistry

Question 1

What is the Collisions theory

Answer 1

For a chemical reaction to occur, the particles must collide with one another

Question 2

What are the 6 types of chemical reactions?

Answer 2

Synthesis, Combustion, Single displacement, double displacement, Decomposition, Neutralization

Question 3

What happens in synthesis?

Answer 3

A+B= AB

Question 4

What happens in combustion?

Answer 4

Reaction of a substance with Oxygen to produce Oxydes, Light, and Heat.

Question 5

What happens in Decomposition?

Answer 5

One composite turns into 2 elements. AB=A+B

Question 6

What happens in Single displacement?

Answer 6

Cations remplacent Cations, Anions remplacent Anions. A+BC=B+AC

Question 7

What happens in Double Displacement?

Answer 7

Change de cations. AB+CD=CB+AD

Question 8

What happens in neutralization?

Answer 8

When an acid and base react and make water and salt

Question 9

What is an Acid?

Answer 9

A solution that contains hydrogen and produces salts

Question 10

What is a Base?

Answer 10

A substance that produces Hydroxyde in a solution.

Question 11

What is a Salt?

Answer 11

The result of a reaction between an Acid and a Base

Question 12

Characteristics of a chemical reaction

Answer 12

Change of colour, smell, and energy. Gas and Precipities are formed. Really hard or impossible to reverse.

Question 13

What does “Polyvalent” mean?

Answer 13

2 or more charges

Question 14

Liaison Ionique

Answer 14

1 metal et un non-metal, Électrons sont transferés, et ajoutés ou perdus

Question 15

Liaison Covalente

Answer 15

2 Non-métaux, électrons sont partagées

Question 16

What does binaire mean?

Answer 16

2 Parts, “Bi” mean 2

Question 17

Polyatomic

Answer 17

More than 1 atom attached with 1 atomic charge

Question 18

What does a ph stick measure?

Answer 18

How acidic or Basic a solution is

Question 19

How to know if a solution is Basic?

Answer 19

If you see OH- ink the formula, it’s probably basic

Question 19

How to know if a solution is Acidic?

Answer 19

If there is an H in front of the whole solution

Question 20

Do all organic composites contain carbon?

Answer 20

Yes

Question 21

Mass conservation law

Answer 21

Mass cannot me created nor destroyed, # of products= #of reactives

Question 22

Definition of Reaction speed:

Answer 22

The amount of time needed for a reaction to occur successfully

Question 23

4 factors that affect reaction speed

Answer 23

Time, Concentration, Surface area, Catalyst

Question 24

Adding temperature to a reaction does what?

Answer 24

Makes it go faster

Question 25

Increasing concentration does what?

Answer 25

Makes it go faster

Question 26

Increasing surface area does what?

Answer 26

Makes it go faster

Question 27

Adding a catalyst does what?

Answer 27

Makes it go faster. A catalyst is not a reactive in the reaction.

Question 28

Quel est l’Hydrocarbure?

Answer 28

Composé organique contenant l’oxygène et hydrogène