The reaction between magnesium and hydrochloric acid is a chemical change. When magnesium metal reacts with hydrochloric acid, it produces magnesium chloride and hydrogen gas. The formation of new substances (magnesium chloride and hydrogen) and the release of gas are indicative of a chemical change. Additionally, there is often an observable reaction, such as bubbling or fizzing due to the release of hydrogen gas.
is magnesium plus hydrochloric acid a chemical change or a physical change
1 answer