Making Salts and Solubility

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8 Terms

1
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What do acids form once dissolved in aqueous solutions?

H+ (Hydrogen ions)

2
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What do alkalis form once dissolved in aqueous solutions?

OH- (hydroxide ions)

3
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What is a base?

A substance that will neutralise an acid; combines with H+ ions

4
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Which colours does Litmus Paper change to?

Acid = Red

Alkali = Blue

5
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Which colours does Methyl Orange change to?

Acid = Red

Alkali = Orange/Yellow

6
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Which colours does Phenolphthalein change to?

Acid = Colourless

Alkali = Pink

7
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Why is do the indicators not tell the exact pH?

Specific indicators for acid and alkali; change at set values

8
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