2. Inorganic AS Flashcards

1
Q

what happens to the solubility of group 2 hydroxides as you go down the group?

A

it increases

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2
Q

what is the general equation for the group 2 hydroxides dissolving in water?

A
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3
Q

what happens to the solubility of group 2 sulfates as you go down the group?

A

it decreases

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4
Q

what is the general equation for group 2 oxides with dilute HCl?

A
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5
Q

what is the reaction of Be with oxygen,water, dilute HCl and dilute H2SO4?

A
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6
Q

What is the reaction of Mg with oxygen,water,dilute HCl,dilute H2SO4?

A
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7
Q

What is the reaction of Ca with oxygen, water, dilute HCl and dilute H2SO4?

A
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8
Q

What is the reaction Sr with oxygen, water, dilute HCl and dilute H2SO4?

A
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9
Q

What is the reaction of Ba with oxygen, water, dilute HCl and dilute H2SO4?

A
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10
Q

what is the reaction of group 2 metals with oxygen?

A
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11
Q

What do Sr and Ba form when reacted with oxygen?

A

a peroxide MO2

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12
Q

What is the reaction for when metals react with water?

A
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13
Q

which group 2 element does not react with water?

A

Be

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14
Q

what is the general equation for the reaction of metals with dilute HCl?

A
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15
Q

What is the general equation for the reaction of metals with dilute H2SO4?

A
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16
Q

which two group 2 elements are insoluble?

A

SrSO4 and BaSO4

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17
Q

what is produced when an oxide/hydroxide reacts with dilute HCl?

A

chloride + water

18
Q

what is produced when an oxide/hydroxide reacts with dilute sulfuric acid?

A

sulfate + water

19
Q

all group 2 carbonates are soluble/insoluble except….

A

insoluble except BeCO3

20
Q

carbonate + dilute HCl = ?

A

chloride + water + carbon dioxide

21
Q

carbonate + dilute H2SO4 = ?

A

sulfate + water + carbon dioxide

22
Q

what is limestone?

A

CaCO3 (calcium carbonate)

23
Q

what is quicklime?

A

CaO (calcium oxide) - formed by the thermal decomposition of calcium carbonate

24
Q

what is slaked lime ?

A

Ca(OH)2 - formed when water is added to quicklime

25
Q

what happens to the volatility of group 7 elements going down the group?

A

it decreases as boiling point increases

26
Q

what happens to the thermal stability of hydrogen halides going down the group?

A

it decreases as their hydrogen-halide bonds become weaker due to the increased atomic radius of the halogens

27
Q

what happens to the reducing power of halide ions going down the group?

A

it increases as the outermost electrons are held less tightly to the positively charged nucleus as the ionic radii increases

28
Q

how do you test for halides?

A

dissolve the solution in nitric acid and then add silver nitrate solution dropwise

29
Q

what colour ppt does AgCl form?

A

white

30
Q

what colour ppt does AgBr form?

A

cream

31
Q

what colour ppt does AgI form?

A

yellow

32
Q

what is added after the silver nitrate solution and why?

A

dilute/concentrated ammonia as the ppt could look very similar in colour

33
Q

what is the unknown halide if it dissolves in dilute ammonia?

A

chloride

34
Q

what is the unknown halide if it doesn’t dissolve in dilute ammonia but it does in concentrated ammonia?

A

bromide

35
Q

what is the unknown halide if it doesn’t dissolve in dilute ammonia or concentrated ammonia?

A

iodide

36
Q

what is the general reaction of halide ions with conc sulfuric acid

A
37
Q

how is HCl gas produced?

A

conc H2SO4 is added to sodium chloride crystals

38
Q

what are the reactions of Br- when reacted with conc H2SO4?

A
39
Q

what are the reactions of I- when reacted with conc H2SO4?

A
40
Q

what is the reaction of chlorine in cold alkali?

A
41
Q

what is the reaction of chlorine in hot alkali?

A