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chemistry > Final Notes 1 > Flashcards

Final Notes 1 Flashcards

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1
Q

Cracking catalyst

A

Unglazed porcelain

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2
Q

Aspirin groups

A

Carboxyl gp COOH
Ester COO
Benzene ring

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3
Q

How to eliminate water of crystallization

A

Dry in oven

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4
Q

Reducing polution ways

What is reduced

A

Catalytic converter NO CO
Unleaded petrol Pb compounds
Scrubbers SO2

Lpg vehicles C compounds
Electrostatic precipitator Particulates

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5
Q

Org reaction with heat

A

Alkene hydrogenation
All alcohol
Esterification
Hydrolysis amide and ester

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6
Q

Org reaction reversible

A

Only acid hydrolysis esters

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7
Q

Soap answering

A

Ionic hydrophillic head
Hydrocarbon hydrophillic tail
Dissolves Surrounds
Repels removed dirt

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8
Q

Al2O3
In acid
In alkali
In water

A

Al2O3 + 6H+ -> 2Al 3+ + 3H2O

Al2O3 + 2OH- + 3H2O -> 2Al(OH)4-

Insoluble in water

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9
Q

SiO2
Alkali
Water

A

SiO2 + 2OH- -> SiO3 + H2O

Insoluble in water

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10
Q

Solubility halides

A

All ok except Ag Pb

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11
Q

Solubility sulphate

A

All except Ag Pb Ba Cu

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12
Q

Solubility carbonate

A

All NOT except K Na NH4

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13
Q

Solubility oxides

A

All NOT except K Na Ca

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14
Q

Solubility hydroxide

A

All NOT except K Na Ca slightly

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15
Q

Metal ions with alkali
Coloured results

Normal amount
Excess NaOH
Excess NH3

A

Fe2+ All Green All PPT
Fe 3+ All Brown All PPT
Cu2+ All Blue PPT except excess nh3

Ag+ Dark brown PPT only in NorMaL Amount

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16
Q

Metal ions alkali

Ions soluble in excess NaOH

A

Al 鋁
Zn 鋅
Pb 鉛

16
Q

Metal ions alkali

Ions soluble in excess NaOH

A

Al 鋁
Zn 鋅
Pb 鉛

17
Q

Metal ions with alkali

Soluble ions excess NH37

A

Zn 鋅
Cu 銅
Ag 銀

18
Q

Element reactivity trend
Gp 1
Gp 2
Gp 7

A

Increases
Increases
Decreases

Ps gp 1 gp 2 reactivity and mp trend same always

19
Q

Elements bpmp trend
Gp 1
Gp 2
Gp 7

A

Decreases
Decreases
Increases

Ps Gp 1 Gp 2 same trend

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