Question

Which procedure could be used to demonstrate that matter is conserved during a chemical change or reaction?(1 point) Responses Find the mass of a stick of butter. Heat the butter until it melts. Find the mass of the melted butter. Find the mass of a stick of butter. Heat the butter until it melts. Find the mass of the melted butter. Find the mass of a piece of paper. Tear the paper into smaller pieces. Find the mass of the pieces. Find the mass of a piece of paper. Tear the paper into smaller pieces. Find the mass of the pieces. Find the mass of a log. Burn the log until it turns to ash and smoke. Find the mass of the ash. Find the mass of a log. Burn the log until it turns to ash and smoke. Find the mass of the ash. Find the mass of an acid and a base. Combine them to produce water and a salt. Find the mass of the water and salt.

Answer 1

To demonstrate that matter is conserved during a chemical change or reaction, the most appropriate procedure would be:

Find the mass of an acid and a base. Combine them to produce water and a salt. Find the mass of the water and salt.

This method involves a chemical reaction, where the reactants (acid and base) are transformed into products (water and salt). By measuring the mass of the reactants before the reaction and the total mass of the products after the reaction, you can demonstrate that the mass remains constant, confirming the law of conservation of mass.