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science > Unit 3: Chemical Composition Common ECMs > Flashcards

Unit 3: Chemical Composition Common ECMs Flashcards

1
Q

Air

A

Mixture
78% Nitrogen (N), 21% Oxygen (O), and other gases

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2
Q

Brass

A

Mixture
Copper (Cu), Zinc (Zn)

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3
Q

Bronze

A

CuSn
Mixture
Copper (Cu), Tin (Sn)

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4
Q

Carbon Dioxide

A

CO2
Compound
Carbon (C), Oxygen (O)

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5
Q

Coal

A

CH
Mixture
Carbon (C), Hydrogen (H)

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6
Q

Copper (II) sulfate

A

CuSO4
Compound
Copper (Cu), Sulfur (S), Oxygen (O)

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7
Q

Magnesium Oxide

A

MgO
Compound
Magnesium (Mg), Oxygen (O)

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8
Q

Oil
(petrol, crude oil etc.)

A

C8H18
Mixture
Carbon (C), Hydrogen (H)

pure petrol (100%) is compound

higher grade of petrol = higher purity

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9
Q

Ozone

A

O3
Compound
Oxygen (O)

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10
Q

Sand

A

SiO2
Compound
Silica (Si), Oxygen (O)

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11
Q

Sea Water/Table Salt (Sodium Chloride)

A

NaCl
Compound
Sodium (Na), Chloride (Cl)

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12
Q

Soft Drinks

A

Mixture
Carbon Dioxide (CO2) in water (H2O)

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13
Q

Steel

A

Mixture
Iron (Fe), Tin (Sn)

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14
Q

Sugar

A

C12H22O11
Compound
Carbon (C), Hydrogen (H), Oxygen (O)

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15
Q

Water

A

H2O
Compound
Hydrogen (H), Oxygen (O)

Tap water is mixture

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16
Q

Vinegar (ethanoic acid)

A

CH₃COOH
Mixture
Carbon (C), Hydrogen (H) Oxygen (O)

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17
Q

Chloroform (from ab)

A

CHCl3
Compound
Hydrogen (H), Chlorine (Cl), Carbon (C)

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18
Q

Sulfuric acid (from ab)

A

H2SO4
Compound
Hydrogen (H), Oxygen (O), Sulfur (S)

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19
Q

Hydrochloric acid (from ab)

A

HCl
Compound
Hydrogen (H), Chlorine (Cl)

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20
Q

Ammonia (from ab)

A

NH3
Compound
Hydrogen (H), Nitrogen (N)

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21
Q

Asbestos (from ab)

A

Mixture

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22
Q

Ethanol (from ab)

A

C2H6O
Compound
Carbon (C), Hydrogen (H), Oxygen (O)

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23
Q

Melamine

A

C3H6N6
Compound
Carbon (C), Hydrogen (H), Nitrogen (N)

24
Q

Potassium

25
Q

Sodium

26
Q

Chlorine

27
Q

Silicon

28
Q

Calcium

29
Q

Nitrogen

30
Q

Sulfur

31
Q

Oxygen

32
Q

Copper

33
Q

Iron

34
Q

Lead

35
Q

Bromine

36
Q

Lithium

37
Q

Argon

38
Q

Nickel

39
Q

Platinum

40
Q

Gold

41
Q

Magnesium

42
Q

Phosphorus

43
Q

Silver

44
Q

Mercury

45
Q

Zinc

46
Q

Helium

47
Q

Carbon

48
Q

Fluorine

49
Q

Neon

50
Q

Diamond (soild form of carbon)

51
Q

Aluminium

52
Q

Cobalt

53
Q

Titanium

54
Q

Tungsten

55
Q

O2

56
Q

Br2

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