Which of the following example demonstrates the reversibility of a chemical change?

refreezing carbon dioxide gas into dry ice

the rotting of eggs

recharging batteries

dehydrating sugar water

Answers

Answer
ANSWERS
1. dry ice becoming vapor
2. iron (Fe) reacting to water((H2O)
3. conduct a test to determine the chemical makeup of the molecules
4. Atoms of one or more substances rearrange into a new substance.
5. recharging batteries
Answered by GPT 3.5
refreezing carbon dioxide gas into dry ice