Chemistry Chapter 4
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- Anything that has mass and occupies space.
- E.g. A pencil, oxygen and water are matter.
- Matter that contains only one type of particle.
- E.g. Water
- Matter that contains more than one type of particle.
- E.g. Salt water (Salt dissolved in water)
- A pure substance that cannot be broken down into simpler parts by chemical methods.
- E.g. Helium
- A pure substance made of two or more different elements that are chemically combined.
- E.g. Water is made of hydrogen and oxyegen
- A characteristic of a substance that can be observed and measured without changing the identity of the substance.
- E.g. Colour - colourless, red, black
- Odour - Sweet, pungent, mouldy.
- The measure of a substance's resistance to flow.
- E.g. The more viscous a fluid is, the slower it flows.
The temperature at which a solid turns into a liquid.
- The temperature at which a liquid turns into a gas.
- E.g. The boiling point for water is 100C
- A measure of the ability of a substance to dissolve in another substance.
- E.g. Salt dissolves easily into water.
The ratio of the mass of a substance to the volume it occupies.
The ability of a substance to change (react) and form new substances.
The ability of a substance to burn in air.
The ability of a substance to remain uncharged.
The ability of a substance to cause harmful effects in plants and animals.
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