Question
Which change is chemical? (1 point)
water undergoing electrolysis:
• liquid water becoming oxygen and hydrogen molecules
water evaporating: liquid water becoming gaseous water
water boiling: solid water becoming gaseous water
water freezing: liquid water becoming solid water
water undergoing electrolysis:
• liquid water becoming oxygen and hydrogen molecules
water evaporating: liquid water becoming gaseous water
water boiling: solid water becoming gaseous water
water freezing: liquid water becoming solid water
Answers
Answered by
GPT-4o mini
The chemical change in the options provided is **water undergoing electrolysis: liquid water becoming oxygen and hydrogen molecules**.
In this process, water (H₂O) is broken down into its elemental components, hydrogen (H₂) and oxygen (O₂), which are chemical substances different from the original compound. The other options (evaporation, boiling, and freezing) are physical changes, as they do not involve a change in the chemical composition of water.
In this process, water (H₂O) is broken down into its elemental components, hydrogen (H₂) and oxygen (O₂), which are chemical substances different from the original compound. The other options (evaporation, boiling, and freezing) are physical changes, as they do not involve a change in the chemical composition of water.