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General chemistry > CH.4- Solutions/Chem rx > Flashcards

CH.4- Solutions/Chem rx Flashcards

1
Q

Na+
Soluble or insoluble?

A

Soluble

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2
Q

K+
Soluble or insoluble?

A

Soluble

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3
Q

Li+ is soluble. T or F

A

True

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4
Q

Which ions are always soluble no matter what?

A
  • 1A group (1st column)
  • NH₄ (ammonium)
  • NO₃- (nitrates)
  • C₂H₃O₂- (acetate)
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5
Q

Is Cl- soluble? Exceptions?

A

Usually soluble
Except: Ag+, Pb²⁺, Hg₂²⁺

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6
Q

Is I- soluble? Exceptions?

A

Usually soluble
Except: Ag+, Pb²⁺, Hg₂²⁺

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7
Q

Is Br- soluble? Exceptions?

A

Usually soluble
Except: Ag+, Pb²⁺, Hg₂²⁺

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8
Q

Is SO₄²⁻ soluble? Exceptions?

A

Usually soluble
Except: Ag+, Pb²⁺, Hg₂²⁺ AND
Ca²⁺, Ba²⁺, Sr²⁺

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9
Q

Is OH- soluble? Exceptions?

A

Insoluble
Except: Na+, NH₄, K+ AND Ca²⁺, Ba²⁺, Sr²⁺

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10
Q

Is S²⁻ soluble? Exceptions?

A

Insoluble
Except: 1A group (1st column) + NH₄

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11
Q

Is CO₃²⁻ soluble? Exceptions?

A

Insoluble
Except: 1A group (1st column) + NH₄

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12
Q

Is PO₄³⁻ soluble? Exceptions?

A

Insoluble
Except: 1A group (1st column) + NH₄

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13
Q

Is CrO₄²⁻ soluble? Exceptions?

A

Insoluble
Except: 1A group (1st column) + NH₄

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14
Q

Soluble or insoluble: AgCl

A

Insoluble

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15
Q

Soluble or insoluble: Hg₂Cl₂

A

Insoluble

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16
Q

Soluble or insoluble: PbCl

A

Insoluble

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17
Q

Soluble or insoluble: AgBr

A

Insoluble

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18
Q

Soluble or insoluble: Hg₂Br₂

A

Insoluble

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19
Q

Soluble or insoluble: HgBr₂

A

Insoluble

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20
Q

Soluble or insoluble: PbBr₂

A

Insoluble

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21
Q

Soluble or insoluble: AgI

A

Insoluble

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22
Q

Soluble or insoluble: Hg₂I₂

A

Insoluble

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23
Q

Soluble or insoluble: HgI₂

A

Insoluble

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24
Q

Soluble or insoluble: PbI₂

A

Insoluble

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25
Soluble or insoluble: CaSO₄
Insoluble
26
Soluble or insoluble: SrSO₄
Insoluble
27
Soluble or insoluble: BaSO₄
Insoluble
28
Soluble or insoluble: AgSO₄
Insoluble
29
Soluble or insoluble: Hg₂SO₄
Insoluble
30
Soluble or insoluble: PbSO₄
Insoluble
31
Soluble or insoluble: (NH₄)₂SO₄
Soluble
32
Soluble or insoluble: (NH₄)₃PO₄
Soluble
33
Soluble or insoluble: (NH₄)₂S
Soluble
34
Soluble or insoluble: Ca(OH)₂
Soluble
35
Soluble or insoluble: Sr(OH)₂
Soluble
36
Soluble or insoluble: Ba(OH)₂
Soluble
37
What are the 6 strong acids?
1) HNO₃ 2) H₂SO₄ 3) HClO₄ 4) HCl 5) HBr 6) HI
38
If an acid isn't strong, it is automatically___
Weak
39
What are the 6 strong bases? Which group on the periodic table?
1) LiOH 2) NaOH 3) KOH 4) Ca(OH)₂ 5) Sr(OH)₂ 6) Ba(OH)₂ Alkali metal hydroxides Alkaline earth hydroxides
40
Strong acids and/or bases do what in water?
Ionizes completely
41
If an acid/base is strong, electrolyte is __
Strong
42
If an acid/base is weak, electrolyte is __
Weak
43
Weak bases are usually which base?
Nitrogen bases
44
Which 3 ions produce gas? What's the product?
1) Sulfides (S) 2) Sulfites (SO₂) 3) Carbonates (CO₃²⁻) They form: Hydrogen sulfide (H₂S (g)) Sulfur trioxide H₂O (l) + SO₂(g) Carbon dioxide H₂O (l) + SO₂ (g)
45
What is oxidation? Is it reducing agent or oxidizing agent?
Increase in oxidation state (loss e-) - Reducing agent
46
What is reduction? Is it reducing agent or oxidizing agent?
Decrease in oxidation state (gain e-) - Oxidizing agent
47
Oxidized = Reducing or oxidizing agent? Why?
Reducing because of loss e-
48
Reduced = Reducing or oxidizing agent? Why?
Oxidizing because of gain e-
49
Oxidation number of an atom of an element =
0
50
Oxidation number of monatomic ions =
Charge of ion
51
Oxidation number of oxygen =
-2 (mostly) Except in H₂O₂ ==> Oxidation #= -1
52
Oxidation number of hydrogen =
+1 (mostly) Except in binary compounds w/ metal ==> Oxidation # = -1
53
Oxidation number of halogens (fluorine)
-1
54
Oxidation number of compounds =
Sum of all oxidation #s = 0
55
Oxidation number of polyatomic ions =
Charge of ion
56
Oxidation number of K =
1
57
Oxidation number of O₇²⁻ =
-2
58
Oxidation - increase or decrease oxidation #
increase
59
Reduction - increase or decrease oxidation #
decrease
60
Oxidizing agent itself is ___
Reduced
61
Reducing agent itself is ____
oxidized

General chemistry (3 decks)

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