Acids And Alkalis Flashcards by Tilda Clements | Brainscape

Q

What is the pH and colour of a strong acid?

A

1-3

Red

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Q

What is the pH and colour of a weak acid?

A

4-6

Yellow

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Q

What is the pH and colour of a neutral substance?

A

7

Green

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Q

What is the pH and colour of a weak alkali?

A

8-10

Blue

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Q

What is the pH and colour of a strong alkali?

A

11-14

Purple

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Q

Strong acids

A

Hydrochloric acid and sulphuric acid

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Q

Weak acids

A

Lemonade and lemon juice

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Q

Neutral substances

A

Water and washing up liquid

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Q

Weak alkali

A

Ammonia and laundry gel

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Q

Strong alkali

A

Sodium hydrogen and caustic soda

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Q

Acid + alkali =

A

Salt + water

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Q

Acid + metal =

A

Salt + hydrogen

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Q

Acid + metal oxide =

A

Salt + water

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Q

Acid + metal carbonate =

A

Salt + water + carbon dioxide

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