Heat of combustion is a chemical property.
Decomposition is the process of a compound breaking up into the elements it was comprised of. For example, in electrolysis water decomposes to create hydrogen and oxygen. Because the chemical bonds holding the hydrogen and oxygen molecules were broken, decomposition is a chemical change.
physical change
chemical property
Chemical change
It depends on how much heat is added; for instance: Chemical change indicates a change in the chemical formula. Heating it would eventually decompose it, so it is a chemical change if you are decomposing it. A change in phase (solid-->gas) would be a physical change, so as long as the chemical formula stays the same, meaning it doesn't react with anything in the air or decompose, it would be a physical change
If a molecule decomposes, then it is a chemical change. Like for water (H2O), It will look like this: 2 H2O -> 2H2 + O2 Since the actual original chemical changed, it is a chemical reaction.
Heat of combustion is a chemical property.
Chemical broooooooooooooooo niga
A physical change
Electrolysis can be used to decompose chemical compounds.
Chemical I think
Chemical.
Decomposition is the process of a compound breaking up into the elements it was comprised of. For example, in electrolysis water decomposes to create hydrogen and oxygen. Because the chemical bonds holding the hydrogen and oxygen molecules were broken, decomposition is a chemical change.
Physical - there are no chemicals involved
Because it is an element francium cannot decompose. However, it does undergo nuclear decay, which is chemical terms, is different from decomposition.
chemical or physical WHAT?