Chemical Reactions

Question 1

Chemical reaction

Answer 1

A process in which atoms are rearranged to form substances

Question 2

Chemical equation

Answer 2

An expression to show the relationship between reactants and products

Question 3

Reactants

Answer 3

Substances that participate in (start) a chemical reaction

Question 4

Products

Answer 4

Substances that are formed in a chemical reaction

Question 5

Law of conservation of mass

Answer 5

Matter cannot be created or destroyed

Question 6

Coefficient

Answer 6

Number in front of a chemical formula and change the balance and chemical equation

Question 7

Endothermic reaction

Answer 7

Chemical reaction with an input of energy

Question 8

Exothermic reaction

Answer 8

Chemical reaction with an output of energy

Question 10

Chemical reactions

Answer 10

The process in which atoms are rearranged.

Question 11

Chemical equation

Answer 11

An expression to show the relationship between reactants and products.

Question 12

Reactants

Answer 12

Substances that participate (start)

Question 13

Products

Answer 13

Substances that are formed in a chemical reaction

Question 14

Law of conservation of mass

Answer 14

Matter cannot be created or destroyed

Question 15

Coefficient

Answer 15

A number that is placed in form of a chemical formula to balance and chemical equation

Question 16

Endothermic reaction

Answer 16

With an input of energy

Question 17

Exothermic reaction

Answer 17

With an output of energy