Question

which of the following example demonstrates the reversibility of a chemical change? (1 point) the rotting of eggs refreezing carbon dioxide gas into dry ice dehydrating sugar water recharging batteries

Explanation:

1. Rotting of eggs is an irreversible chemical change as new substances are formed with different properties and it cannot be reversed back to original eggs.
2. Refreezing carbon - dioxide gas into dry ice is a physical change (sublimation in reverse), not a chemical change.
3. Dehydrating sugar water is a physical change as it is just the removal of water from a mixture, and can be reversed by adding water back.
4. Recharging batteries involves a chemical reaction that is reversible. During discharging, a chemical reaction occurs to produce electrical energy, and during recharging, the reverse chemical reaction occurs to restore the battery's chemical state.

Answer:

recharging batteries