Chemistry Key Word Definitions (H)

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What is hard water?
Water in which it is difficult to form a lather with soap. It contains calcium and/or magnesium ions react with soap to produce scum.
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Hardening is...?
The process of reacting plant oils with hydrogen to raise their melting point. This is used to make spreadable margarine.
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Wat is the homologous series?
A group of related organic compounds that have the same functional group, e.g. the molecules of the homologous series of alcohols all contain the -OH group.
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Hydrated describes...?
A substance that contains water in its crystals, e.g. hydrated copper sulfate.
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What is a hydrocarbon?
A compound containing only hydrogen and carbon.
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What is hydrogenated oil?
Oil which has had hydrogen added to reduce the degree of unsaturation in the hardening process to make margarine.
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What is hydrophilic?
The water-loving part of an emulsifier molecule.
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What is hydrophobic?
The water-hating part of an emulsifier molecule.
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Other cards in this set

Card 2

Front

Hardening is...?

Back

The process of reacting plant oils with hydrogen to raise their melting point. This is used to make spreadable margarine.

Card 3

Front

Wat is the homologous series?

Back

Preview of the front of card 3

Card 4

Front

Hydrated describes...?

Back

Preview of the front of card 4

Card 5

Front

What is a hydrocarbon?

Back

Preview of the front of card 5
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