Question #47ae6 Chemistry Matter Physical and Chemical Changes 1 Answer Ricardo A. Feb 26, 2016 Chemical change Explanation: Here is the reaction: #Mg+2HCl=MgCl_2+H_2# Answer link Related questions How can you increase the speed of a chemical change? What is a chemical change? How are physical changes different from chemical changes? Do chemical changes involve energy? What is a physical change? Are physical changes reversible? Question #d9d76 Is the protonolysis reaction of sulfuric acid in aqueous solution an example of chemical change? Question #76744 What are the chemical changes of smores? See all questions in Physical and Chemical Changes Impact of this question 2449 views around the world You can reuse this answer Creative Commons License