Question

Q30 Different types of materials have
properties.​

Answer 1

Answer:

Physical versus chemical

Physical properties refer to properties that can be observed or measured without changing the composition of the material. Examples include colour, hardness and smell and freezing, melting and boiling points.

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Answer 2

Answer:

Physical properties refer to properties that can be observed or measured without changing the composition of the material. Examples include colour, hardness and smell and freezing, melting and boiling points. Chemical properties are discovered by observing chemical reactions.