C3 - Unit 3

What are the elements in group 1?
Alkali metals.
1 of 16
What are the elements between group 2 and 3?
Transition metals.
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What are the elements in group 7?
Halogens.
3 of 16
What does hard water contain?
Dissolved compounds such as calcium and magnesium salts.
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What is hard water better?
Good for developing and maintaining teeth and bones, also helps prevent heart disease.
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Disadvantages of hard water?
Creates scum and scale.
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Advantages of hard water?
Fluoride in the water helps prevent tooth decay,
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What reaction takes place when food and fuels react with oxygen?
Exothermic.
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How can you test for positive ions?
The flame test or using hydroxide solution.
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How can you test for negative ions?
Adding dilute hydrochloric acid to see if it fizzes and turns cloudy or by precipitation.
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What does titration do?
Sees how much acid and alkali reacted together completely.
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What is chemical equilibrium?
When the rates of the forward and reverse reactions are equal.
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What is the Haber process?
Used to manufacture a reasonable yield of ammonia in the quickest time possible. With 200 atmospheres at 450'c.
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What is the structure of an alcohol?
-OH
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What is the structure of a carboxylic acid?
-COOH
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What is the structure of esters?
-COO-
16 of 16

Other cards in this set

Card 2

Front

What are the elements between group 2 and 3?

Back

Transition metals.

Card 3

Front

What are the elements in group 7?

Back

Preview of the front of card 3

Card 4

Front

What does hard water contain?

Back

Preview of the front of card 4

Card 5

Front

What is hard water better?

Back

Preview of the front of card 5
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