the answer is in the picture, btw the molar mass for the first one is wrong, it should be 77.98, and the final product is 2.32
Liquid silver is less dense than solid silver, so the solid silver would sink
1. rancidification fixation of water is CHEMICAL CHANGE
2. Tearing of paper is PHYSICAL CHANGE
3. Rusting if iron is CHEMICAL CHANGE
4. Electrolysis of water is CHEMICAL CHANGE
Answer:
4 moles of aluminum and 6 moles of oxygen are produced