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Chemistry GL Quiz

Total questions: 100

Worksheet time: 1hrs 12mins

Name
Class
Date
1.
The atomic number tells you what?
a)
number of electrons
b)
number of protons
c)
number of neutrons
d)
both electrons and protons in an atom.
2.
Which group of the periodic table is composed of inert (not reactive)  gases?
a)
alkali metals
b)
alkaline earth metals
c)
halogens
d)
noble gases
3.
The atoms along the staircase are called 
a)
metals
b)
nonmetals
c)
metalloids
d)
noble gases
4.
Elements in a ..................have similar chemical properties.  
a)
period
b)
group
c)
row
5.

Which color on the image of the periodic table corresponds with the transition metals.

a)

red

b)

black

c)

blue

d)

orange

6.

Which color on the image of the periodic table corresponds with the alkaline earth metals.

a)

yellow

b)

dark yellow

c)

blue/green

d)

teal

7.

What is the symbol for potassium?

a)

Ka

b)

Po

c)

PA

d)

K

8.

What is a compound made of?

a)

songs

b)

cages

c)

molecules, Elements, atoms

d)

words

9.
Contains only one kind of atom.
a)
Element
b)
Compund
c)
Mixture
10.

Examples are diamonds (C) and Uranium (U)

a)

elements

b)

mixtures

c)

compounds

11.
Is sugar (C12H22O11) an element or a compound?
a)
Element
b)
Compound
12.
Which of the following is a property of a liquid
a)
Can't be compressed
b)
Can be compressed
c)
Particles are far appart
d)
Particles hold the object's shape 
13.
Which states allow easy flow of particles
a)
Gas and Solid
b)
Gas and Liquid
c)
Solid and Liquid
d)
Gas only
14.
How do materials change from one state of matter to another?
a)
They gain or lose energy
b)
They break appart
c)
The particles get stickyer
d)
They are magnetised to themselves
15.
Is NO2 an element or a compound?
a)
element
b)
compound
16.
Which description best matches this particle model?
a)
Closely packed and can't move a lot. 
b)
Particles are close together but can move a little. 
c)
Particles have lots of energy and can move around. 
17.
Which layer is made up of iron and nickel?
a)
Crust
b)
Mantle
c)
Inner Core
d)
Lithosphere
18.
What is the correct layers of the earth starting with the surface?
a)
crust, outer core, inner core, mantle
b)
mantle, outer core, inner core ,crust
c)
crust, mantle, outer core, inner core
d)
outer core, inner core , crust, mantle
19.
Which layer of Earth is liquid metal?
a)
Outer Core
b)
Mantle
c)
Inner Core
d)
Asthenosphere
20.
Which is the hottest layer and has the most pressure on it?
a)
Crust
b)
Mantle
c)
Outer Core
d)
Inner core
21.
The layer of rock that forms Earth's outer skin.
a)
crust
b)
mantle
c)
core
22.

In what layer does convection occur?

a)

Crust

b)

Mantle

c)

Inner core

d)

Shell

23.

Which cannot be recycled?

a)

Plastics

b)

Cans

c)

Clothes

d)

Cardboard

24.

Fossil fuels will diminish faster if we do not recycle.

a)

True

b)

False

25.
Useful materials from the earth,such as coal, oil, natural gas, and trees.
a)
Natural Resources
b)
Greenhouse gases
c)
Ignitability
d)
Pollution
26.
Unprocessed natural resources used to manufacture or create a range of modern conveniences.
a)
Raw Materials
b)
Source Reduction
c)
Pollution
d)
Composting
27.
A gas that absorbs and retains heat from the sun. 
a)
Biodiversity
b)
Greenhouse Gases
c)
Landfill
d)
Combustion
28.

What does this sign mean?

a)

walk in circles

b)

reduce, reuse, recycle

c)

save the environment

d)

green is my favourite colour

29.
WHAT ARE THE 3R'S OF RECYCLING?
a)
Redirct, Rude, Round.
b)
Respectful, Responsible, Right.
c)
Reduce, Reuse, Recycle. 
d)
Rewrite, rewind, respond.
30.

If something is Renewable it is

a)

Regularly replaces or replenished by nature

b)

Can only be used once or cannot be replaced by nature

c)

The Earth

d)

Our solar system

31.

What does Conservation mean

a)

Spending as much as you can

b)

Good communication skills

c)

Wise use of natural resources to prevent loss or harm

d)

The place where bands play

32.

Most of the air pollution in the world is caused by what?

a)

Acid rain

b)

Volcanoes erupting

c)

People passing gas

d)

The burning of fossil fuels

33.

Zn(s) + CoO(s) -> ZnO + Co(s)
In the reaction above which metal is higher the reactivity series?

a)

O

b)

Co

c)

Zn

34.

Zn(s) + CuO(s) -> ZnO(s) + Cu(s)

The reaction above is Zn oxidised or reduced?

a)

oxidised

b)

reduced

35.

Displacement reactions are used to find the order of reactivity of metals.


In an experiment, a piece of zinc metal is placed in a beaker containing copper(II) sulfate solution.


What do you observe when zinc is added to copper (ii) sulfate?

a)

The solution turns from blue colourless

b)

A pink/brown substance is formed

c)

Bubbles form

d)

Hydrogen gas is produced

36.

Does this show an endothermic or an exothermic reaction?

a)

Endothermic

b)

Exothermic

37.

In an endothermic reaction...

a)

heat is released

b)

heat is absorbed

38.

In an endothermic reaction...

a)

products have more energy than reactants

b)

reactants have more energy than products

39.

Catalysts increase the reaction rate by lowering the activation energy

a)

True

b)

False

40.

For which reaction is the activation energy higher?

a)

With the catalyst

b)

Without the catalyst

41.
This variable in an experiment is the one being deliberately changed by the scientist. 
a)
dependent variable
b)
independent variable
c)
data
d)
control group
42.
In a controlled experiment, how many independent variables can be worked with at a time? 
a)
one
b)
none
c)
two or more
d)
how ever many makes sense.
43.
A series of steps used by scientists to solve a problem or answer a question. 
a)
scientific method
b)
recipe
c)
data collection
d)
metric system
44.
A list of the steps anyone could follow to conduct an experiment. 
a)
obervations
b)
question/problem
c)
materials
d)
procedures
45.
An experiment is being done to determine how light affects the growth of small zinnia plants. One plant is placed in full sunlight, the second in a shaded area, the third in an unlit closet. What is the independent variable in the experiment?
a)
the amount of light
b)
the type of plants
c)
the type of soil
d)
the length of the experiment
46.

You've got a mixture of powdered sugar and cooking salt. What is the suitable separation technique for this mixture? Hint: the particles of cooking salt are much bigger than those of powdered sugar.

a)

filtering

b)

sieving

c)

distillation

d)

separation technique

47.

Ethanol and water have different boiling point. What would be the suitable separation technique for a mixture of both substances?

a)

Distillation

b)

Chromatography paper

c)

Sieving

48.

How would you separate the substances shown in the picture (oil and water)?

a)

by sieving

b)

by decanting

c)

by distillation

d)

by filtering

49.

What is the suitable separation technique for a mixture of iron filings and salt?

a)

sieving

b)

filtering

c)

magnetic separation

50.

The pigment responsible for the colour of spinach leaves are several substances. How can you separate them?

a)

sieving

b)

decanting

c)

paper chromatography

51.

Sulphur is not soluble in water. If, accidentally, some sulphur drops into a glass of water. Which separation technique would you use to separate it from the water?

a)

by decanting

b)

by filtering

c)

by crystallization

d)

by sieving

52.

You've got a mixture of CCl4 and water. Both liquids are immiscible. What is the suitable separation technique to separate both liquids?

a)

Distillation

b)

Sieving

c)

Magnetic separation

d)

Decanting

53.
The pH scale is a range from:
a)
1-7
b)
0-14
c)
1-5
d)
1-20
54.
A(n) _______ is a substance with a pH greater than 7.
a)
Base
b)
Acid
c)
Buffer
d)
Water
55.
A solution with a pH of 8.6 would be...
a)
Acid
b)
Base
c)
Neutral
d)
Acid and Base
56.
The pH scale 8-14 are...
a)
acids
b)
bases
c)
neutral
57.

Products of a neutralisation reaction are always

a)

an acid and a base

b)

an acid and a salt

c)

salt and water

d)

salt and base

58.

Why is toothpaste alkaline?

a)

It can neutralise strong alkaline in

your mouth

b)

It can neutralise acid in

your mouth

c)

It can refresh your teeth

d)

Toothpaste is not alkaline.

59.

... are used to neutralise acid in the stomach.

a)

Toothpastes

b)

Bacterias

c)

Antacids

d)

More strong acids

60.

H2SO4(aq) + 2KOH(aq) --> ____________ + 2H2O(l)

a)

K2SO4

b)

KCl

c)

KNO3

d)

Mg(OH)2

61.

Soft drinks could contain

a)

Acetic acid

b)

Carbonic acid

62.

Sulphuric acid + potassium hydroxide --> ........................ + water

a)

potassium sulphate

b)

potassium sulphurate

c)

potassium nitrate

d)

magnesium hydroxide

63.
What method is used to study the neutralisation reaction between an acid and an alkali?
a)
Evaporation
b)
Titration
c)
Sublimation
d)
Electrolisis
64.
In a neutralisation reaction, what is the function of the indicator?
a)
To indicate that the mixture is neutral
b)
To indicate that hot water should be added
c)
To indicate that the flask should be shaken
d)
To indicate that a precipitate is formed
65.

Complete the word equation below:

Acid + alkali --> ............... + water

a)

water

b)

salt

c)

gold

d)

metal

66.

The formula of iron(III) oxide is

a)

FeO

b)

FeO2

c)

Fe2O

d)

Fe2O3

67.

The formula of sodium carbonate is

a)

NaCO3

b)

Na(CO3)2

c)

Na2CO3

68.

The formula of silver nitrate is

a)

AgNO3

b)

Ag2NO3

c)

Ag(NO3)2

69.
Which of the following reactions is balanced?
a)
2CH4 + O2 -> CO2 + H2O
b)
CH4 + 2O2 -> CO2 + H2O
c)
CH4 + 2O2 -> CO2 + 2H2O
d)
None of the chemical equations are balanced.
70.
In chemical reactions, what does the principle of conservation of mass mean?
a)
Matter is not created or destroyed.
b)
The total mass of the reactants is greater than the total mass of the products.
c)
The total mass of the reactants is less than the total mass of the products.
d)
Matter is not changed.
71.
The following is what type of reaction:
PbCl2 + AgNO3 → Pb(NO3)2 + AgCl
a)
Synthesis
b)
Decomposition
c)
Single Replacement
d)
Double Replacement
72.
The following is what type of reaction:
NH3 + HCl  → NH4Cl
a)
Synthesis
b)
Decomposition
c)
Single Replacement Replacement
d)
Double Replacement Replacement
73.
What is decomposition?
a)
putting substances together
b)
breaking substances apart
c)
element replacing another element in a compoud
d)
burning of a subtance
74.
What type of chemical reaction is this?
Al(OH)3 → Al2O3  + H2O
a)
Decomposition
b)
Combustion
c)
Synthesis
d)
Single Replacement 
75.
3Ca + 2AlCl3 --> 3CaCl2 + 2Al
a)
Synthesis
b)
Decomposition
c)
Single Displacement
d)
Double Displacement
76.
One element replaces another in a compound.
a)
Synthesis
b)
Combustion
c)
Single Replacement
d)
Double Replacement
77.
One reactant into several products.
a)
Decomposition
b)
Synthesis
c)
Combustion
d)
Single Replacement
78.
C4H12 + O2 → CO2 + H2O
a)
Synthesis
b)
Combustion
c)
Single Replacement
d)
Double Replacement
79.
Which reaction type is the following: C5H10O4 + O2 --> CO2 + H2O
a)
Decomposition
b)
Single Replacement
c)
Combustion
d)
Double Replacement
80.
Which of the following is the general formula for a decomposition reaction?
a)
A + B  → AB
b)
AB → A + B
c)
AB + C → AC + B
d)
AB + CD → AC + BD
81.
A neutralization reaction will (almost) always produce...
a)
water & salt
b)
water
c)
salt
d)
water & carbon
82.

What is considered to be in the middle of the pH scale

a)

acidic

b)

neutral

c)

basic

d)

indicator

83.
Identify the salt in the following equation:
Zn(OH)2 + HNO3   ---> H2O  + Zn(NO3)2
a)
Zn(OH)2
b)
HNO3
c)
H2O
d)
Zn(NO3)2
84.

Complete the following reaction:

HCl + Mg(OH)2 -->

a)

MgCl2 + H2O

b)

Mg +H2O

c)

MgCl2 + H2

d)

MgCl2 + H2O + CO2

85.
What type of reaction is displayed below?
HCl + NaOH → NaCl + H2O
a)
Neutralization
b)
Combustion
c)
Double Replacement
d)
Decomposition
86.
In a neutralization reaction, what are the products of a reaction between an acid and a base?
a)
Another acid and base
b)
Carbon dioxide and a salt
c)
Water and a salt
d)
Either two acids or two bases
87.
Forms hydroxide ions (OH-) in water
a)
Acids
b)
Bases
c)
All
88.

A type of chemical that forms solutions that taste sour, due to high concentrations of positive hydrogen ions

a)

acid

b)

base

c)

salt

d)

pH

89.
Which one of these is not an acid?
a)
tomato
b)
coke
c)
toothpaste
d)
all the above
90.

Why is toothpaste alkaline?

a)

It can neutralise strong alkaline in

your mouth

b)

It can neutralise acid in

your mouth

c)

It can refresh your teeth

d)

Toothpaste is not alkaline.

91.

WHAT ARE THE PROPERTIES OF ACID ?

a)

Acids are corrosive, sour,

b)

Lemon

c)

Mint

d)

tastes bitter

92.

How to neutralise wasp sting

a)

baking soda

b)

vinegar

c)

Lime water

d)

Drain cleaner

93.

What is just so typical of NON-metals?

a)

They don't know what colours go well together.

b)

Malleable.

c)

Form acidic oxides.

d)

Good conductors of electricity.

e)

High melting points.

94.
Which of these is a property of metals?
a)
It's malleable
b)
It can't conduct electricity
c)
They are used in food
d)
It's very brittle
95.

A metal high in the reactivity series.....

a)

Forms unstable compounds.

b)

Can be obtained by the reduction of the ore with the carbon.

c)

Readily gains electrons.

d)

Burns to form basic oxides.

e)

Reacts readily with cold water to form Hydrogen.

96.
Where are the non-metallic elements found in the periodic table?
a)
In the middle
b)
In the top rows
c)
On the left-hand side
d)
On the right-hand side
97.
Which type of elements are used in computer chips, lasers, and transistors?
a)
Metals
b)
Nonmetals
c)
Metalloids
d)
Metals and Metalloids
98.
When an object changes shape when struck by a hammer.
a)
luster
b)
malleable
c)
brittleness
d)
ductile
99.
Particles in a liquid are loosely bound, can change their relative position and hence...
a)
flow into the shape of their container
b)
will never move
c)
have zero energy
d)
are always hot
100.
The diagram below shows a chromatogram obtained when a sample X was analysed together with four other known dyes P, Q, R and S. Dye Q was known to cause cancer. Which of the following dye(s) is/are safe for use?
a)
P only
b)
S only
c)
P and S
d)
P and X

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