Which procedure could be used to demonstrate that matter is conserved during a chemical change or reaction?(1 point)%0D%0AResponses%0D%0A%0D%0AFind the mass of a piece of paper. Tear the paper into smaller pieces. Find the mass of the pieces.%0D%0AFind the mass of a piece of paper. Tear the paper into smaller pieces. Find the mass of the pieces.%0D%0A%0D%0AFind the mass of a stick of butter. Heat the butter until it melts. Find the mass of the melted butter.%0D%0AFind the mass of a stick of butter. Heat the butter until it melts. Find the mass of the melted butter.%0D%0A%0D%0AFind the mass of a log. Burn the log until it turns to ash and smoke. Find the mass of the ash.%0D%0AFind the mass of a log. Burn the log until it turns to ash and smoke. Find the mass of the ash.%0D%0A%0D%0AFind the mass of an acid and a base. Combine them to produce water and a salt. Find the mass of the water and salt.

1 answer

To demonstrate that matter is conserved during a chemical change or reaction, the best 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 procedure explicitly involves a chemical reaction and allows you to compare the total mass of the reactants (the acid and base) with the total mass of the products (the water and salt). According to the law of conservation of mass, the mass before and after the reaction should be the same, demonstrating that matter is conserved during the chemical change.