Which procedure could be used to demonstrate that matter is conserved during a chemical change or reaction?
A find the mass of an acid and a base. Combine them to produce water and salt. Find the mass of the water and salt.
B find the mass of a piece of paper. Tear the paper into smaller pieces. Find the mass of the pieces.
C find the mass of a stick of butter. He’s a butter until it melts. Find the mass of the melted butter.
D find the mass of a log. Burn the log until it turns to Ash and smoke. Find the mass of the Ash.