Which option is an example of a chemical change? A spreading peanut butter

B cutting bread

C digesting a sandwich

D stirring jelly

The climate of the continental united states is generally 1. tropical 2. temperate 3. arctic 4. highland

Which statement describes james chadwick’s discovery.

Iron (3) oxide will decompose in the presence of hydrogen gas and heater to produced iron and digydrogen monoxide white a balanced chemical equation