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Chemistry 101 > Tests for practicals > Flashcards

Tests for practicals Flashcards

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1
Q

carbonate

A

add dilute acid = effervescence, carbon dioxide produced

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2
Q

chloride

A

acidify with dilute nitric acid, then add aqueous silver nitrate = white ppt.

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3
Q

bromide

A

acidify with dilute nitric acid, then add aqueous silver nitrate = cream ppt

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4
Q

nitrate

A

add aqueous sodium hydroxide then aluminium foil; warm carefully = ammonia produced

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5
Q

sulfate

A

acidify, then add aqueous barium nitrate = white ppt.

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6
Q

ammonium effect of aqueous sodium hydroxide

A

ammonia produced on warming

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7
Q

ammonium effect of aqueous ammonia

A

–

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8
Q

calcium effect of aqueous sodium hydroxide

A

white ppt., insoluble in excess

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9
Q

calcium effect of aqueous ammonia

A

no ppt., or very slight white ppt.

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10
Q

copper effect of aqueous sodium hydroxide

A

light blue ppt., insoluble in excess

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11
Q

copper effect of aqueous ammonia

A

light blue ppt., soluble in excess, giving a dark blue solution

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12
Q

iron (II) effect of aqueous sodium hydroxide

A

green ppt., insoluble in excess

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13
Q

iron (II) effect of aqueous ammonia

A

green ppt., insoluble in excess

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14
Q

iron (III) effect of aqueous sodium hydroxide

A

red-brown ppt., insoluble in excess

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15
Q

iron (III) effect of aqueous ammonia

A

red-brown ppt., insoluble in excess

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16
Q

zinc effect of aqueous sodium hydroxide

A

white ppt., soluble in excess giving a colourless solution

17
Q

zinc effect of aqueous ammonia

A

white ppt., soluble in excess, giving a colourless solution

18
Q

ammonia gas

A

turns damp, red litmus paper blue

19
Q

carbon dioxide gas

A

turns limewater milky

20
Q

chlorine gas

A

bleaches damp litmus paper

21
Q

hydrogen gas

A

pops’ with a lighted splint

22
Q

oxygen gas

A

relights a glowing splint

23
Q

lithium flame

A

red

24
Q

sodium flame

A

yellow

25
Q

potassium flame

A

lilac

26
Q

copper flame

A

blue - green

Chemistry 101 (1 decks)

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