Question

1. match each term to its definition.
2. equilibrium
3. coefficient
4. product
5. reactant

a. a substance present before a chemical reaction
b. when reactions move back and forth at the same rate
c. indicates how many of each atom or molecule are present
d. a substance present after a chemical reaction

Explanation:

• Equilibrium: In chemistry, equilibrium occurs when the forward and reverse reactions of a chemical system proceed at the same rate.
• Coefficient: In a chemical equation, the coefficient (a number in front of a chemical formula) shows the number of atoms or molecules involved in the reaction.
• Product: Products are the substances formed as a result of a chemical reaction.
• Reactant: Reactants are the substances that undergo a chemical change (are present before the reaction).

Answer:

1. b
2. c
3. d
4. a