Chem something Flashcards

(6 cards)

1
Q

NO3

A

Boil with sodium hydroxide and aluminium. Creates ammonia, which turns a damp red litmus blue.

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2
Q

CO3

A

Add HCl to the solid. Bubbles of CO2 gas will come out which is bubbled through limewater

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3
Q

SO3

A

Add acidified potassium manganate and warm gently. Sulfur dioxide turns it from purple to colourless.

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4
Q

SO4

A

Add a few drops of nitric acid, then barium nitrate. White precipitate of barium sulfate is formed.

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5
Q

Cl

A

Add a few drops of nitric acid and then silver nitrate solution. White precipitate of silver chloride.

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6
Q

I

A

A few drops of nitric acid and then silver nitrate solution. Pale yellow solution of silver iodide.

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