when zinc metal is mixed with hydrochloric acid, vigorous production of what substance is an indication that…

when zinc metal is mixed with hydrochloric acid, vigorous production of what substance is an indication that a chemical reaction is occurring?

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:

When zinc reacts with hydrochloric acid, a single - displacement reaction occurs. Zinc replaces hydrogen in hydrochloric acid. The products are zinc chloride and hydrogen gas. The vigorous production of gas is a sign of a chemical reaction. In this case, the gas produced is hydrogen.

Answer:

Hydrogen gas