Science - Chemistry//Reactions

Question 1

Combination Reaction

Answer 1

2 or more reactants combine to form a single product

Question 2

Decomposition Reaction

Answer 2

single product breaks down into 2 products

Question 3

Single Replacement Reaction

Answer 3

1 Reaction is displaced by the other to form final product

Question 4

Double Displacement Reaction

Answer 4

2 bonds are exchanged by 2 compounds to form a different compound

Question 5

True/ False: Ions are exchanged and oxidations changes during a double displacement

Answer 5

False: Ions are exchanged but the oxidation stays the same

Question 6

Combustion reactions

Answer 6

chemical reaction involving fuel and oxidant which produces heat or light

Question 7

True/ False: Fuel and Oxidant determine the compound formed in a combustion reaction

Answer 7

TRUE

Question 8

Exothermic

Answer 8

Release energy

Question 9

Activation energy

Answer 9

minimum energy required for a reaction to occur

Question 10

Catalyst

Answer 10

lowers the activation energy required for a reaction to occur

Question 11

Base

Answer 11

higher pH, >7pH

Question 12

Acid

Answer 12

Low pH, <7pH

Question 13

What determines the strength of an acid or base

Answer 13

it depends on how much their atoms ionize in solution

Question 14

What are acid properties

Answer 14

sour taste, change litimus paper to red, produce gases h2, produce salt precipitates

Question 15

Salt

Answer 15

formed from Acid//Base reactions