When an acid reacts with a metal, hydrogen gas is produced and a corresponding ____ is formed. This type of reaction is typical when ____ reacts with ____ producing ____ and hydrogen gas.
1
water; iron; acetic acid; iron acetate
2
base; copper; hydrochloric acid; copper chloride
3
acid; aluminum; nitric acid; aluminum nitrate
4
salt; zinc; sulfuric acid; zinc sulfate