chemical tests Flashcards

1
Q

flame tests

A
lithium with a red flame 
sodium burns with a yellow flame 
potassium burns lilac flame
calcium orange-red flame
copper blue-green flame
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2
Q

precipitates wiht NaOH

A

copper(II) blue
iron(II) green
iron(III)brown

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3
Q

check for ammonia gas

A

it will turn damp red litmus paper blue

ammonium when reacted with NaOH will give off ammonia gas and therefore you can test for it.

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4
Q

test for carbonates

A

if you add hcl to a carbonate you CO2 will be given off and therefore this means that you can then test fro CO2 using limewater

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5
Q

test for sulfates

A

add dilute hcl and then barium chloride

if a white precipitate is given off this means that original compound was a a sulfate

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6
Q

testing for hallides

A

add nitric acid and silver nitrate
chloride ion gives a white precipitate
bromine ion gives a cream precipitate
an iodide ion gives a yellow precipitate.

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7
Q

test for chlorine

A

bleaches damp blue litmus paper white.

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