7. when zinc metal is mixed with hydrochloric acid, vigorous production of what substance is an indication…
7. when zinc metal is mixed with hydrochloric acid, vigorous production of what substance is an indication that a chemical reaction is occurring?
Answer
Brief Explanations:
Zinc reacts with hydrochloric acid in a single - displacement reaction. The reaction produces hydrogen gas, and the vigorous production of gas is an indication of a chemical reaction.
Answer:
Hydrogen gas