Which procedure could be used to demonstrate that
matter is conserved during a chemical change or
reaction? (1 point)
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 an acid and a base.
Combine them to produce water and a
salt. Find the mass of the water and salt.
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 log. Burn the log until it turns to ash and smoke. Find the mass of the ash.
The procedure that could be used to demonstrate that matter is conserved during a chemical change or reaction is to find the mass of the substances involved before and after the change. The correct answer in this case is the third option: "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."
To perform the experiment, you would start by measuring the mass of the acid and the base. Then, you would mix them together to create a chemical reaction that produces water and a salt. After the reaction is complete, you would measure the mass of the water and the salt that is formed.
By comparing the initial mass of the acid and the base with the final mass of the water and the salt, you can observe if there are any differences. If matter is conserved, you will find that the total mass of the water and the salt is equal to the initial mass of the acid and the base. This demonstrates the conservation of matter during a chemical change or reaction.
The procedure that could be used to demonstrate that matter is conserved during a chemical change or reaction is:
1. Find the mass of a piece of paper.
2. Tear the paper into smaller pieces.
3. Find the mass of the pieces.
4. Compare the mass of the torn paper pieces to the initial mass of the paper.
This experiment will show that the total mass of the torn paper pieces is equal to the initial mass of the paper, indicating that matter is conserved during a chemical change or reaction.