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24 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Definition of Matter |
Anything that occupies space and has mass |
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Definition of Evaporation |
The changing of a liquid to a gas |
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A saturated solution |
A solution that contains as much dissolved solute as possible at that temperature |
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Definition of Crystallisation |
The formation of crystals by cooling a saturated solution |
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Definition of a mixture |
Consists of two or more substances not chemically combined |
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An element |
A substance made up of only one type of atom |
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A molecule |
Composed of two or more atoms chemically combined |
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Compounds |
Consists of two or more elements chemically combined |
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The periodic table |
Shows elements in order of increasing atomic numbers |
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Ionic bonds |
This occurs when one atom loses electrons and another atom is gains electrons |
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Covalent bonding |
This occurs when atoms share electrons |
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What is an ion |
A charged atom or group of atoms |
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Rusting |
The corrosion of iron |
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Whats a Fuel |
A substance that burns in oxygen to produce heat |
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Fossil fuels |
Formed from the remains of organisms that lived millions of years ago |
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Hydrocarbons |
Compounds made up of hydrogen and carbon |
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Definition of Catalysts |
Substances that alter the rate of a chemical reaction but are not used up themselves |
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Stages of Water treatment |
Screening, Settling, Filtration, Chlorination, Fluoridation |
Silly Sean Follows Chelsea Football |
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Screening |
The first stage, it involves passing water threw a wire mesh or screen to remove an floating materials |
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Settling |
Water flows into a large tank and aluminium sulfate is added and is left there to leave small particles to settle |
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What is Electrolyse |
The splitting up of a compound by passing electricity through it i.e. water |
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Hard water |
Does not lather easily with soap |
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Soft water |
Lathers easily with soap |
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What is Polymerisation |
Small repeating units called monomers join together to form a large molecule called a polymer |
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