Question

Antoine Lavoisier burned metals in sealed jars. What is your prediction of his experimental results?


The mass of the jar and contents varied unpredictably as the conservation of mass depended upon the metal being burned.


The mass of the jar and contents increased after the metal was burned.


The mass of the jar and contents remained the same after the metal was burned.


The mass of the jar and contents decreased after the metal was burned.

Answer 1

Answer:

The mass of the jar and contents remained the same after the metal was burned.

Explanation:

My prediction about the experimental results is that  the mass of the jar and contents remained the same after the metal was burned in the jar.

This is compliance with the law of conservation of mass which states that in a chemical reaction, matter is neither created nor destroyed by bonds are rearranged for new compounds to form.

• In compliance with this law, it is expected that the mass of the jar and its content will remain the same before and after the reaction.
• No new material was added and no material was removed from the jar.