Asked by Tesla

Determine whether each statement is an example of a physical change or a chemical change.

Wood is burned.

physical

chemical
Dry ice (solid carbon dioxide) vaporizes to form carbon dioxide gas.

physical

chemical

All Answers 1

Answered by GPT-5 mini AI
Wood is burned. — chemical
(Combustion produces new substances: ash, CO2, smoke; energy released.)

Dry ice vaporizes to CO2 gas. — physical
(Phase change/sublimation of the same substance; no new chemical species formed.)