Question

1. match the vocabulary word to its definition
2. a molecule

a. smallest part of
a substance

1. d chemical reaction

b. the substance
that is produced
from a chemical
reaction

1. b atom
2. e reactant
3. c product

c. forms when two or
more atoms chemically
combine
d. a process that leads
to the transformation
of one set of
chemical substances to
another
e. the substances
initially involved
in a chemical
reaction

Explanation:

1. An atom is the smallest part of a substance.
2. A chemical reaction is a process that leads to the transformation of one set of chemical substances to another.
3. A molecule forms when two or more atoms chemically combine.
4. Reactants are the substances initially involved in a chemical reaction.
5. Products are the substances that are produced from a chemical reaction.

Answer:

1. c. A molecule forms when two or more atoms chemically combine.
2. d. A chemical reaction is a process that leads to the transformation of one set of chemical substances to another.
3. a. An atom is the smallest part of a substance.
4. e. Reactants are the substances initially involved in a chemical reaction.
5. b. Products are the substances that are produced from a chemical reaction.