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S2 chemistry > Acids and alkalis > Flashcards

Acids and alkalis Flashcards

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1
Q

What are common Lab acids?

A

Hydrochloric acid
Sulfuric acid
Nitric acid

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2
Q

What are common Lab alkalis?

A

Sodium hydroxide

potassium hydroxide

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3
Q

What pH do alkali solutions give?

A

greater than pH 7

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4
Q

What pH do acid solutions give?

A

less than pH 7

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5
Q

What colour does universal indicator turn in the presence of strong acid?

A

It turns from green to red

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6
Q

What colour does universal indicator turn in the presence of weak acid?

A

It turns from green to yellow

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7
Q

What colour does universal indicator turn in the presence of weak alkali?

A

It turns from green to turquoise

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8
Q

What colour does universal indicator turn in the presence of strong alkali?

A

It turns from green to purple/blue

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9
Q

A solution which is neither acid or alkali it is called

A

neutral

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10
Q

What colour is a neutral solution using universal indicator?

A

Green

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11
Q

Acids all contain

A

hydrogen

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12
Q

Alkalis all contain

A

hydroxide

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13
Q

acid + alkali –>

A

Salt + water

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14
Q

metal carbonate + acid –>

A

salt + water + carbon dioxide

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15
Q

metal oxide + acid –>

A

salt + water

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16
Q

What is the test for carbon dioxide?

A

turns limewater

17
Q

metal hydroxide + acid –>

A

salt + water

18
Q

An acid and alkali is an example of a

A

neutralisation reaction

19
Q

Lithium hydroxide + nitric acid –>

A

Lithium nitrate + water

20
Q

copper carbonate + nitric acid –>

A

copper nitrate + water + carbon dioxide

21
Q

copper carbonate + sulfuric acid –>

A

copper sulfate + water + carbon dioxide

22
Q

when an acid or alkali undergo neutralisation reactions their pH moves to

A

7 neutral solution

23
Q

Everyday uses of acids

A

food flavourings (vinegar) & cleaning products

24
Q

Everyday uses of alkalis

A

Cleaning products

25
Q

sulfuric acid chemical name is

A

hydrogen sulfate

26
Q

hydrochloric acid chemical name is

A

hydrogen chloride

27
Q

Nitric acid chemical name is

A

hydrogen nitrate

S2 chemistry (3 decks)

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