Question

physical vs. chemical change quick check
which of the following example demonstrates the reversibility of a chemical change? (1 point)

• dehydrating sugar water
• refreezing carbon dioxide gas into dry ice
• the rotting of eggs
• recharging batteries

Explanation:

Dehydrating sugar - water is a physical change as it involves evaporation of water. Freezing carbon - dioxide gas into dry ice is a physical phase change. Rotting of eggs is an irreversible chemical change. Recharging batteries involves a reversible chemical reaction where chemical energy is converted to electrical energy and vice - versa.

Answer:

recharging batteries