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Unit 1 Area of Study 2 Superquiz

Total questions: 57

Worksheet time: 5hrs 45mins

Name
Class
Date
1.

What is relative atomic mass? (Chapter 7.1)

a)

The mass of an atom relative to 1/12 of the mass of an atom of Carbon-12

b)

The mass of a compound relative to 1/12 of the mass of an atom of Carbon-12

c)

The sum of the reltive masses of the atoms in a molecule

d)

The mass of an atom relative to the whole mass of an atom of Carbon-12

2.

Rubidium has two common isotopes, 85Rb and 87Rb. If the abundance of 85Rb is 72.2% and the abundance of 87Rb is 27.8%, what is the average atomic mass of rubidium? (chapter 7.1)

a)

85.468 amu

b)

37 amu

c)

85.6 amu

d)

86.4 amu

3.

Which instrument determines the isotopic abundance of a given element? (chapter 7.1)

a)

Mass spectrometer

b)

Colorimeter

c)

UV-visible spectrophometer

d)

Gas chromatographer

4.

What do the peaks on the mass spectrum represent? (chapter 7.1)

a)
anions
b)
different isotopes
c)
atoms with differing numbers of electrons
d)
numbers of electrons
5.

What do you expect the molar mass to be for this element? (chapter 7.1)

a)
91.4 g/mol
b)
90.0 g/mol
c)
4 g/mol
d)
50. g/mol
6.

What is the mass in gram of 1 mole of O2? (chapter 7.2)

a)
16 g/mol
b)
32 g/mol
c)
16 amu
d)
32 amu
7.

1 mole of Li has the same amount of molecules as... (chapter 7.2)

a)
2 moles of Li
b)
1 mole of H2O
c)
3 moles of H2
d)
2 moles of H2O
8.

How many moles are in 6.02 x 1023 molecules of H2O? (chapter 7.2)

a)

1 mole

b)

2 moles

c)

6.02 moles

d)

602000000000000000000000 moles

9.

How many moles are in 8.30 X 1023 molecules of H2O? (chapter 7.2)

a)

1.38 X 1023 moles H2O

b)

1.38 moles H2O

c)

2 moles H2O

d)

1 mole H2O

10.

Calculate the number of oxygen atoms in 1.5 mol of iron (III) sulfate, Fe2(SO4)3 (chapter 7.2)

a)

9.03 x 1023 atoms

b)

1.1 x 1024 atoms

c)

2.49 x 10-24

d)

2.99 x 10-23

11.

What is the molar mass of NaCl? (chapter 7.3)

a)

49.46 g/mol

b)

58.44 g/mol

c)

152.92 g/mol

d)

161.90 g/mol

12.

Calculate the number of CO2 molecules present in 22g of carbon dioxide (chapter 7.3)

a)

2.0 x 10^23 molecules

b)

3.0 x 10^23 molecules

c)

4.0 x 10^23 molecules

d)

5.0 x 10^23 molecules

13.

Find the percentage composition of  Mg in Mg3(PO4)2. (chapter 7.4)
   

a)
27.75% Mg
b)
23.57% Mg
c)
48.68% Mg
d)
13.45% Mg
14.

What is the percent composition of oxygen in carbon dioxide? (chapter 7.4)

a)
27.3% O
b)
33.3 % O
c)
66.7 % O
d)
72.7% O
15.

What is the empirical formula of a substance with the molecular formula C2H4? (chapter 7.4)

a)

C2H2

b)

C2H2

c)

C1H1

d)

CH2

16.

What is the empirical formula for hydrogen peroxide (H2O2)? (chapter 7.4)

a)

H2O

b)

H2O2

c)

HO

d)

HO2

17.

What is the empirical formula for hydrogen peroxide (H2O2)? (chapter 7.4)

a)

H2O

b)

H2O2

c)

HO

d)

HO2

18.

A compound consists of 72.2% magnesium(Mg) and 27.8% nitrogen(N) by mass. What is the empirical formula? (chapter 7.4)

a)
Mg4N3
b)
MgN2
c)
Mg3N2 
d)
MgN
19.

2.40 g of an explosive, J, contains 0.473 g of nitrogen. J also contains 33.8% carbon and 1.41% hydrogen by mass. The remainder of J is oxygen.


What is the empirical formula of J? (chapter 7.4)

a)

C4HNO2

b)

CH2N2O

c)

C2HNO2

d)

CHNO

20.

What is the molecular formula if the empirical formula is CH2O and the molecular molar mass is 180.18? (chapter 7.4)

a)
CH2O
b)
C2H4O2
c)
C4H8O4
d)
C6H12O6
21.

Hydrocarbons, the simplest family of carbon compounds, are made from these two elements: (chapter 8.1)

a)

Hydrogen and Copper

b)

Helium and Carbon

c)

Hydrogen and Carbon

22.

What process is used to separate crude oil in hydrocarbons with different chain lengths? (chapter 8.1)

a)

distillation

b)

fractional distillation

c)

cracking

d)

polymerisation

23.

Fractional distillation separates crude oil based on the different __________ of the molecules in the mixture (chapter 8.1)

a)

melting point

b)

boiling point

c)

freezing point

d)

chemical reactivity

24.

What are some examples of plant-sourced biomass? Select all that apply (chapter 8.1)

a)

Photosynthesis

b)

Bioethanol

c)

Bio-derived polyethene

d)

ABS polymers

25.

Which of these condensed formulas represent the same molecule? (AKA. NOT structural isomers, just the same molecule) (chapter 8.1)

a)
They are all different
b)
a and b
c)
a and c
d)
b and c
26.

Which of the following is true about structural isomers? (chapter 8.1)

a)
Have the same molecular formula
b)
Have different physical and chemical properties.
c)
Have the same number of elements
d)
all of the above
27.

Give the name of this compound...
C3H8 (chapter 8.2)

a)

Pentane

b)

Propene

c)

Butene

d)

Propane

28.

What type of organic compound is it? (chapter 8.2)

a)

Alkyne

b)

Alkene

c)

Alkane

d)

Alkaline

29.

The longer the hydrocarbon, the _______ the boiling point (chapter 8.2)

a)

Lower

b)

Higher

30.

What is the general formula of an alkane? (chapter 8.2)

a)


2n+2

b)


CnH2n+2

c)

CnH2n

d)

CnHn

31.

What is the general formula of an alkene? (chapter 8.2)

a)


2n+2

b)


CnH2n+2

c)

CnH2n

d)


CnHn

32.

What kind of molecule is this? (chapter 8.2)

a)

Alkane

b)

Alkene

c)

Alkyne

d)

Cycloalkane

33.

Why is carbon able form long chains? (chapter 8.2)

a)

Because carbon is an unstable non-metallic element

b)

Carbon can form 4 covalent bond

c)


Carbon is the most abundant element on the surface of our planet

d)

Every organic compound contains carbon

34.

Which formula represents an unsaturated hydrocarbon? (chapter 8.2)

a)

A

b)

B

c)

C

d)

D

35.

The molecular formula for Heptane is... (chapter 8.2)

a)

C4H10

b)

C5H12

c)


C7H18

d)

C7H16

36.

Name this compound (chapter 8.2)

a)
2,2-dimethyl-4-ethylhexane
b)
4-ethyl-2,2-dimethylhexane
c)
3-ethyl-5,5-dimethylhexane
d)
4-ethyl-2-methylhexane
37.

Name this isomer of heptane (chapter 8.2)

a)

5-methyl-heptane

b)

2-methyl-hexane

c)

2-methyl-heptane

d)

5-methyl-hexane

38.

Which is 2-chloro-3-ethylpentane? (chapter 8.3)

a)

b)

c)

d)

39.

Name this structure. (chapter 8.3)

a)
1,3-dibromo-2-chlorobutane
b)
2,4-dibromo-3-chlorobutane
c)
1,3-bromo-2-chlorobutane
d)
2,4-bromo-3-chlorobutane
40.

Which is 1-chloro-3-methylbutane? (chapter 8.3)

a)

b)

c)

d)

41.

Select the correct name of the following formula. (chapter 8.4)

a)

ethanoic acid

b)

propanoic acid

c)

hexanoic acid

d)

butanoic acid

42.

Name the functional group found in alcohols (chapter 8.4)

a)

Hydroxide

b)

Hydroxyl

c)

Double bond

d)

Carboxyl

43.

What is the general formula for alcohols? (chapter 8.4)

a)

CnH2n+1OH

b)

CnH2nOH

c)

CnH2n+2OH

d)

CnH2n+1O

44.

Name the molecule (chapter 8.4)

a)

Hexan-2-ol

b)

Hexan-3-ol

c)

Hexan-4-ol

d)

Hexanol

45.

How do you test for an alkene? (chapter 8.2)

a)
React it with oxygen
b)
React it with litmus paper
c)
React it with bromine water
d)
pH test
46.

Once formed, it can be heated and reformed over and over again (chapter 9.2)

a)

thermoset

b)

thermoplastic

c)

elastomer

d)

kevlar

47.

What is the name of the reaction used to make polymers? (chapter 9.1)

a)

polymerisation

b)

cracking

c)

polygonisation

d)

precipitation

48.

What is a monomer? (chapter 9.1)

a)

Many molecules that can undergo polymerisation

b)

A single molecule that can undergo polymerisation

c)

A type of polymer

d)

A fraction

49.

Name the main sources of Polymers (chapter 9.1)

a)

Crude Oil

b)

Coal

c)

Ores

d)

Natural Gas

50.

What are the 2 types of Polymers? (chapter 9.2)

a)

Thermosetting Plastics

b)

Thermochromic Plastics

c)

Thermoplastics

d)

Thermopolymers

51.

Which of these are thermoplastic properties (chapter 9.2)

a)

Reshaping capabilities

b)

High impact resistance

c)

Recyclable

d)

Resistant to high temperatures

e)

Cannot be recycled

52.

What is a copolymer? (chapter 9.3)

a)

A copolymer is a type of polymer formed by the polymerisation of two or more different monomers.

b)
A copolymer is a type of polymer formed by the condensation of two or more different monomers.
c)

A copolymer is a type of polymer formed by the polymerisation of two or more identical monomers.

d)

A copolymer is a type of polymer formed by the polymerisation of three or more different monomers.

53.

Which of these affect the physical properties of a polymer? Select all that apply (chapter 9.3)

a)

None of the other answers

b)

polarity of side groups

c)

the extent of branching

d)

the length of the carbon chain

54.

Only __________ are given a recycle code from 1 to 7 to inform consumer of their recycling potential (chapter 9.4)

a)

thermoplastics

b)

thermosetting plastics

c)

PVC plastics

d)

plastics with high levels of branching

55.

PLA (polyactic acid) is a compostable polymer alternative to PET bottles. This is an example of... (chapter 9.5)

a)

polymerisation

b)

organic recycling

c)

circular economy

d)

linear economy

56.

What are the main types of recycling? Select all that apply (chapter 9.5)

a)

organic recycling

b)

mechanical recycling

c)

chemical recycling

d)

anaerobic recycling

57.

What is the difference between bio-degradable and compostable polymers? (chapter 9.5)

a)

Biodegradable polymers can break down naturally in the environment over an unspecified period of time, while compostable polymers can break down into harmless elements in a compost environment

b)
Biodegradable polymers can break down into smaller pieces, while compostable polymers break down into organic matter.
c)
Biodegradable polymers can break down into toxic substances, while compostable polymers break down into harmless substances.
d)
Biodegradable polymers can break down in any environment, while compostable polymers require specific conditions to break down.

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