Physical Properties: observed without changing the chemical make up of matter
Chemical Properties: observed through a chemical reaction
Substances have both chemical properties and physical properties. Which of the following properties of a piece of wood are physical properties?
a) It has a mass of 2.3 g.
b) It is rough to touch.
c) It is hard.
d) In burns in air to produce carbon dioxide.
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What scientific concept do you need to know in order to solve this problem?
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