tests Flashcards by Thea Davis

Q

oxygen

A

glowing splint-relights

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Q

hydrogen

A

burning splint-squeaky pop

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Q

carbon dioxide

A

bubbled through limewater-turns milky white

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Q

chlorine

A

damp blue litmus paper-bleaches

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Q

lithium flame test

A

crimson

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Q

sodium flame test

A

yellow

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Q

potassium flame test

A

lilac

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Q

calcium flame test

A

orange-red

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Q

copper flame test

A

green

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Q

aluminium sodium hydroxide test

A

white precipitate redissolves when excess alkali is added

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Q

calcium sodium hydroxide test

A

white precipitate

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Q

magnesium sodium hydroxide test

A

white precipitate

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Q

copper sodium hydroxide test

A

light blue solid precipitate

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Q

iron(II) sodium hydroxide test

A

green precipitate

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Q

iron(III) sodium hydroxide test

A

brown suspended precipitate

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Q

halide test

A

add dilute nitric acid then silver nitrate

Q

chloride halide test

A

white precipitate

Q

bromide halide test

A

cream precipitate

Q

iodide halide test

A

yellow precipitate

Q

sulfate test method

A

add dilute hydrochloric acid then barium chloride

Q

sulphate test posotive result

A

white precipitate

Q

carbonate test method

A

add dilute acid then collect gas and test with limewater

Q

carbonate test result

A

fizzing. limewater turns milky white

Q

test for alkenes

A

bromine water

Q

alkene test result

A

brown to colourless