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Principles of Chemistry > Chemical Tests > Flashcards

Chemical Tests Flashcards

1
Q

Test for Oxygen

A

Relights a glowing splint

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2
Q

Test for Hydrogen

A

Lit splint gives a squeaky pop

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3
Q

Test for Carbon Dioxide

A

Limewater goes cloudy

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4
Q

Chlorine

A

Bleaches litmus paper

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5
Q

Ammonia

A

Damp red litmus paper goes blue

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6
Q

Flame test for Potassium

A

Lilac

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7
Q

Flame test for Sodium

A

Orange

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8
Q

Flame test for Calcium

A

Brick Red

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9
Q

Flame test for Lithium

A

Red

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10
Q

Flame test for Copper (II)

A

Green

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11
Q

Halide Tests method

A
  1. Add Nitric Acid

2. Add silver nitrate

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12
Q

Halide Test for Chloride

A

White Precipitate

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13
Q

Halide Test for Bromide

A

Cream Precipitate

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14
Q

Halide Test for Iodide

A

Yellow Precipitate

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15
Q

Cation test Method

A

With Sodium Hydroxide (NaOH)

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16
Q

Cation test for Iron (II)

A

Green Precipitate

17
Q

Cation test for Iron (III)

A

Brown Precipitate

18
Q

Cation test for Copper (II)

A

Blue Precipitate

19
Q

Physical Test for Water

A

Boiling Point - 100 degrees centigrade

Freezing Point - 0 degrees centigrade

20
Q

Chemical Test Water

A

Anhydrous Copper (II) Sulphate goes from

Blue - - - – - - - - - – - - - – - – - - - - - - - - - - -> White

21
Q

Test for Ammonium cations (NH4)

A
  1. Add Sodium Hydroxide to a solution with the ammonium ion
  2. Warm it gently
  3. Test the gas given off, makes litmus paper go blue
22
Q

Test for Sulphate anions

A
  1. Add hydrochloric acid to remove any carbonate impurities

2. Add Barium Chloride, White precipitate

23
Q

Test for Carbonate anions

A
  1. Add any acid
  2. Produces Carbon Dioxide
  3. Makes Limewater go cloudy

Principles of Chemistry (2 decks)

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