Chemistry Chapter

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Matter

Anything that has mass and occupies space

E.g. Everything
Pure substance

Matter that contains only one kind of particle

E.g. Pure oxygen, pure honey
Mixture

Matter that contains more than one kind of particle

E.g. Soda, Gasoline
Compound

A pure substance made of two or more different elements that are chemically combined

E.g. Potassium nitrate
Physical property

A characteristic of a substance that can be observed and measured without changing the identity of the substance
Viscosity

The measure of a substance's resistance to flow
Melting point

The change of state solid to liquid
Boiling point

The temperature at which a liquid turns into a gas
Solubility

A measure of the ability of a substance to dissolve in another substance
Density

The ratio of the mass of a substance to the volume it occupies
Chemical property

The ability of a substance to change or react and to form new substances
Combustibility

The ability of a substance to burn in air
Stability

The ability of a substance to remain unchanged
Toxicity

The ability of a substance to cause harmful effects in plants and animals
Element

A pure substance that cannot be broken down into simpler parts by chemical methods

E.g. Gold, Boron