Chemistry Tests Flashcards by Aneurin Quinn Evans | Brainscape

Q

Test for ammonium ions

A

Add sodium hydroxide

Moist red litmus paper should turn blue

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Q

Test for sulfate ions

A

Add hydrochloric or nitric acid and barium chloride or barium nitrate
Should produce a white precipitate

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Q

Test for ammonia

A

Use moist red litmus paper

Should turn blue

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Q

Test for calcium

A

Flame test: brick red

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Q

Test for lithium

A

Flame test: red

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Q

Test for test for ion(ii) ions

A

Add sodium hydroxide

Produces a green precipitate

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Q

Test for copper(ii) ions

A

Add sodium hydroxide

Produces a blue precipitate

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Q

Test for sodium

A

Flame test: yellow/orange

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Q

Test for carbonate ions

A

Add an acid

Should start to fizz

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Q

Test for chloride ions

A

Add nitric or sulfuric acid and silver nitrate

Should produce a white precipitate

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Q

Test for chlorine gas

A

Moist litmus paper(both types) bleaches

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Q

Test for bromide ions

A

Add nitric or sulfuric acid and silver nitrate

Should produce a cream precipitate

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Q

Test for iodide ions

A

Add nitric or sulfuric acid and silver nitrate

Should produce a yellow precipitate

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Q

Test for water

A

Add anhydrous copper sulfate

Turns blue

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Q

Test for carbon dioxide

A

Pour gas into limewater

Should turn cloudy

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Q

Test for iron(iii) ions

A

Add sodium hydroxide

Should produce a yellow/brown precipitate

Q

Test for c=c double bonds

A

Add bromine water

Should decolorise

Q

Litmus in alkali

A

Blue colour

Q

Methyl orange in alkali

A

Yellow colour

Q

Phenolphthalein in alkali

A

Pink colour

Q

Test for hydrogen

A

Hold lit splint to gas

Gives off a squeaky pop

Q

Test for oxygen gas

A

Hold a glowing splint to gas

Splint should re-ignite

Q

Litmus in acid

A

Red colour

Q

Methyl orange in acid

A

red/orange colour

Q

Phenolphthalein in acid

A

Colourless