Which of the following describes a chemical reaction?

Question

A = pure substances reacting to form non-pure substances

B = pure substances on the left side of a chemical equation

C = pure substances reacting to form different pure substances

D = pure substances on the right side of a chemical equation

Answer 1

C = pure substances reacting to form different pure substances

Answer 2

Use the equation to answer the question.

hydrogen + oxygen = water

Which are the reactants in this equation?

A = hydrogen and oxygen

B = hydrogen and oxygen and water

C = oxygen and water

D = water only

Answer 3

A = hydrogen and oxygen

Answer 4

Which is one difference between reactants and products?

A = products exist in different states of matter from the reactants

B = products are pure substances while reactants are not

C = products are on the left side of a chemical equation; reactants are on the right

D = products have different properties than reactants

Answer 5

A = products exist in different states of matter from the reactants