C4 Flashcards

1
Q

What are Group 1 elements called?

A

Alkali metals

Alkali metals include lithium, sodium, potassium, etc.

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2
Q

How many outer electrons do Group 1 elements have?

A

One outer electron

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3
Q

What happens to the melting points of Group 1 elements as you go down the group?

A

They decrease

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4
Q

What type of compounds do Group 1 elements form?

A

Ionic compounds

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5
Q

How does the reactivity of Alkali metals change as you move down Group 1?

A

Increases

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6
Q

What occurs when alkali metals are put in water?

A

They react vigorously

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7
Q

What are Group 7 elements called?

A

Halogens

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8
Q

How many electrons are in the outer shell of Group 7 elements?

A

Seven electrons

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9
Q

What type of molecules do Group 7 elements form?

A

Diatomic molecules

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10
Q

What happens to the boiling points and density of Group 7 elements as you go down the group?

A

They increase

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11
Q

As you go down Group 7, how does the reactivity of Halogens change?

A

Decreases

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12
Q

What is a displacement reaction?

A

A reaction where a more reactive element displaces a less reactive element from its compound

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13
Q

What are Group 0 elements called?

A

Noble Gases

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14
Q

What is a reactive characteristic of Noble Gases?

A

They are inert / unreactive

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15
Q

What happens to the boiling point and density of Noble Gases as you move down the group?

A

They increase

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16
Q

What are the properties of Transitional metals?

A

Hard, strong, shiny

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17
Q

How do Transitional metals compare to Alkali metals in terms of reactivity?

A

They are less reactive

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18
Q

What does a lit splint create in a test for Hydrogen?

A

A squeaky pop

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19
Q

What happens to a glowing splint in a test for Oxygen?

A

Relights

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20
Q

What does damp blue litmus paper do in a test for Chlorine?

A

Bleaches white

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21
Q

What occurs when Carbon Dioxide is bubbled through limewater?

A

It goes cloudy

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22
Q

What color does the flame turn for a Lithium Ion in a flame test?

A

Red

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23
Q

What color does the flame turn for a Sodium Ion in a flame test?

24
Q

What color does the flame turn for a Potassium Ion in a flame test?

25
Q

What color does the flame turn for a Calcium Ion in a flame test?

26
Q

What color does the flame turn for a Copper (II) Ion in a flame test?

A

Blue - Green

27
Q

What is the formula for a Lithium Ion?

28
Q

What is the formula for a Sodium Ion?

29
Q

What is the formula for a Potassium Ion?

30
Q

What is the formula for a Calcium Ion?

31
Q

What is the formula for a Copper (II) Ion?

32
Q

What is the formula for an Iron (II) Ion?

33
Q

What is the formula for an Iron (III) Ion?

34
Q

What is the formula for a Zinc (II) Ion?

35
Q

What is the color of the hydroxide precipitate for Iron (II) Ion?

36
Q

What is the color of the hydroxide precipitate for Iron (III) Ion?

A

Orange - Brown

37
Q

What is the color of the hydroxide precipitate for Copper (II) Ion?

38
Q

What is the color of the hydroxide precipitate for Calcium Ion?

39
Q

What is the color of the hydroxide precipitate for Zinc (II) Ion?

A

White (dissolves in excess)

40
Q

What is the formula of the hydroxide precipitate for Iron (II) Ion?

41
Q

What is the formula of the hydroxide precipitate for Iron (III) Ion?

42
Q

What is the formula of the hydroxide precipitate for Copper (II) Ion?

43
Q

What is the formula of the hydroxide precipitate for Calcium Ion?

44
Q

What is the formula of the hydroxide precipitate for Zinc (II) Ion?

45
Q

What is the color of the precipitate in a halide test for Chloride Ion?

A

White precipitate

46
Q

What is the color of the precipitate in a halide test for Bromide Ion?

A

Cream precipitate

47
Q

What is the color of the precipitate in a halide test for Iodide Ion?

A

Yellow precipitate

48
Q

What is the formula of the precipitate in a halide test for Chloride Ion?

49
Q

What is the formula of the precipitate in a halide test for Bromide Ion?

50
Q

What is the formula of the precipitate in a halide test for Iodide Ion?

51
Q

How is a Flame Test carried out?

A

Cleaning a nichrome wire, dipping it into hydrochloric acid, rinsing in deionised water, dipping into sample, using it on a blue flame

52
Q

How is a Halide Ion Test carried out?

A

Adding nitric acid and a few drops of silver nitrate solute

53
Q

How is a hydroxide precipitate test carried out?

A

Adding sodium hydroxide to sample of unknown compound

54
Q

How is a sulfate ion test carried out?

A

Adding nitric acid and barium nitrate to sample, white precipitate forms if sulfate ions are present

55
Q

How is a carbonate ion test carried out?

A

Adding acid to sample, fizzing seen if carbonate ions are present producing CO2 gas

56
Q

What are the advantages of instrumental methods?

A

Very sensitive, fast, accurate