chelsr98 chelsr98

10-11-2014
Chemistry

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How do you decide whether an observed property of matter is a physical or a chemical property?

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craigc456 craigc456

10-11-2014

Physical properties can be measured without changing the identity of the substance. Chemical properties involve its reactivity.

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jserene01 jserene01

10-11-2014

A physical change is reversible, a chemical change is not. For example, the freezing of water would be a physical change because it can be reversed, whereas the burning of wood is a chemical change - you can't 'unburn' it

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