Topic 7

Question 1

Chemical reaction

Answer 1

Two or more substances undergo a reorganisation of atoms to form other substances

Question 2

Reactants and Products

Answer 2

Reactants- the substances that go into the chemical reaction

Products- The substances produced by the chemical reaction

Question 3

Exothermic reaction

Answer 3

Chemical reaction that give off energy; energy is a product

Question 4

Endothermic reaction

Answer 4

Chemical reaction that absorb energy; energy is a reactant