Question
What are some examples of chemical and physical changes in heat taking place around you for one day?
Answers
Cathrine
maybe evaporation?
DrBob222
One example of chemical change is lighting a gas stove to cook material. That is the oxidation of methane.
CH4 + 2O2 ==> CO2 + 2H2O
Cooking is another example of chemical change; for example, baking bread.
One example of a physical change is one suggested by Cathrine.
CH4 + 2O2 ==> CO2 + 2H2O
Cooking is another example of chemical change; for example, baking bread.
One example of a physical change is one suggested by Cathrine.
~christina~
Melting ice: physical change
Soba
Thanks. Is the oxidation of methane exothermic or endothermic?
GK
All oxidations are exothermic
GK
Yes, melting ice is a physical change.