Chemistry Revision

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  • Created by: Wardie123
  • Created on: 01-01-15 17:25
What pH does a neutral substance have? Give an example of aa neutral liquid
7 Water or Vodka
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What pH numbers indicate that a substance is acidic?
0-6
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What pH numbers indicate that a substance is alkaline?
8-14
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Can you give 2 (of each) examples of lab acids and alkalis?
Acid= hydrochloric acid and sulphuric acid. Alkali= ammonia and sodium hydroxide.
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What safety precautions are necessary when using lab acids and alkalis?
1) Wear safety specs at all times 2) Wash spills with lots of water 3) Tell a teacher is anything spills.
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What do acids and alkalis do to each other when they react?
They cancel each other out and they neutralise.
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Can you give 2 examples of neutralisation in real life?
1)Too much acid in the stomach causes digestion. The medicines used to cure indigestion contain alkalis. This neutralises the excess stomach acid.
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Can you give 2 examples of neutralisation in real life?
2) An acid, like vinegar, is used to neutralise a wasp sting, which is alkaline.
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Write general word equations for all neutralisation reactions. Give one specific example of each type.
1) Nitric Acid + Lithium Hydroxide - Lithium Nitrate + Water
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Write general word equations for all neutralisation reactions. Give one specific example of each type.
2) Sulfuric Acid + Tin Hydroxide - Tin Sulfate + Water
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Write general word equations for all neutralisation reactions. Give one specific example of each type.
3) Phosphoric Acid + Zinc Hydroxide - Zinc Phosphate + Water
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Write general word equations for all neutralisation reactions. Give one specific example of each type.
4) Hydrochloric Acid + Lead Hydroxide - Lead Chlorice + Water
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Other cards in this set

Card 2

Front

What pH numbers indicate that a substance is acidic?

Back

0-6

Card 3

Front

What pH numbers indicate that a substance is alkaline?

Back

Preview of the front of card 3

Card 4

Front

Can you give 2 (of each) examples of lab acids and alkalis?

Back

Preview of the front of card 4

Card 5

Front

What safety precautions are necessary when using lab acids and alkalis?

Back

Preview of the front of card 5
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