The example that demonstrates the reversibility of a chemical change is recharging batteries.
When batteries are recharged, the chemical reactions that occurred during discharge are reversed, allowing the battery to work again.
The other options represent processes that are generally not reversible in the same way:
- Refreezing carbon dioxide gas into dry ice involves a physical change (phase change) rather than a chemical one.
- The rotting of eggs is a chemical change that is irreversible.
- Dehydrating sugar water can be reversed by adding water, but this process primarily involves physical changes rather than chemical changes.
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