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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
Sodium
Na
26
Chlorine
Cl
27
Silicon
Si
28
Calcium
Ca
29
Nitrogen
N
30
Sulfur
S
31
Oxygen
O
32
Copper
Cu
33
Iron
Fe
34
Lead
Pb
35
Bromine
Br
36
Lithium
Li
37
Argon
Ar
38
Nickel
Ni
39
Platinum
Pt
40
Gold
Au
41
Magnesium
Mg
42
Phosphorus
P
43
Silver
Ag
44
Mercury
Hg
45
Zinc
Zn
46
Helium
He
47
Carbon
C
48
Fluorine
F
49
Neon
Ne
50
Diamond (soild form of carbon)
C
51
Aluminium
Al
52
Cobalt
Co
53
Titanium
Ti
54
Tungsten
W
55
O2
molecule
56
Br2
molecule

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