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Year 8 Chemistry revision

Total questions: 28

Worksheet time: 18mins

Name
Class
Date
1.

Which element is required for combustion?

a)

Nitrogen

b)

oxygen

c)

hydrogen

d)

carbon

2.
The Noble Gases is another name for the...
a)
Group 1 Elements
b)
Group 7 Elements
c)
Group 0 Elements
d)
Group 2 Elements
3.
Global Warming is...
a)
the increase in the global average air temperature
b)
gases in the atmosphere increasing the global average air temperature.
c)
cutting down or burning forests
d)
changes to long-term weather patterns
4.
The Greenhouse Effect is...
a)
the increase in the global average air temperature
b)
gases in the atmosphere increasing the global average air temperature.
c)
cutting down or burning forests
d)
changes to long-term weather patterns
5.
Which element is not a metal?
a)
H
b)
Re
c)
Al
d)
B
6.

Water is a ________

a)

atom

b)

element

c)

compound

7.

Identify the reactants in the following word equation


Methane + Oxygen produces Carbon Dioxide + water

a)

Carbon Dioxide + water

b)

Carbon Dioxide

c)

Methane + Oxygen

d)

Methane

8.

in this image the protons are

a)

Green

b)

Purple

c)

Orange

d)

not shown

9.

an element is..

a)

one type of atom

b)

many different types of atom

10.

Which elements are to the right of the zig zag?

a)

metals

b)

nonmetals

c)

metalloids

11.

Magneisum reacts with oxygen to form magnesium oxide. The correct word equation is...

a)

A

b)

B

c)

C

d)

D

12.
What is the addition of oxygen to a substance called?
a)
decomposition
b)
reduction
c)
oxidation
d)
extraction
13.

Which element cannot be extracted from its ore by reduction with carbon?

a)

iron

b)

aluminium

c)

copper

d)

zinc

14.

What method would be used in order to extract potassium?

a)

Heating with Carbon

b)

The blast furnace

c)

Potassium is found uncombined

d)

Electrolysis

15.

Rusting is an example of

a)

oxidation

b)

reduction

16.

What prevents Rusting

a)

Painting , Oiling , Galvinising

b)

Washing with water

17.

In which tube will the nail go rusty?

a)

The nail in tube A will go rusty.

b)

The nail in tube B will go rusty.

c)

The nail in tube C will go rusty.

18.

Metal + Acid -> ___ + ___

a)

Salt + Hydrogen

b)

Metal Hydroxide + Hydrogen

c)

Metal Oxide + Hydrogen

d)

Metal Carbonate + Hydrogen

19.

Lithium + nitric acid ->

a)

Lithium nitride + hydrogen

b)

Lithium nitric + hydrogen

c)

Lithium nitrogen + hydrogen

d)

Lithium nitrate + hydrogen

20.
Which salt will be produced if magnesium react with hydrochloric acid?
a)
Magnesium oxide
b)
Magnesium sulfate
c)
Magnesium sulfide
d)
Magnesium chloride
21.
A displacement reaction will occur when...
a)
a more reactive metal displaces a less reactive metal from its compound.
b)
A less reactive metal displaces a more reactive metal from its compound
c)
Displacement only occurs when two of the same metals are reacted 
d)
Displacement reactions will only occur in metals above iron in the reactivity series
22.

Iron + copper oxide =

a)

Iron + copper oxide

b)

Iron oxide + copper oxide

c)

Iron oxide + copper

d)

Magic

23.

Which of the following is more reactive?

a)

Calcium

b)

Magnesium

c)

Zinc

d)

Magnesium

24.

All alloys are mixtures.

a)

True

b)

False

25.

what is the name of group number 1

a)

halogens

b)

noble gases

c)

alkali

d)

alkaline earth

26.
Each row in a periodic table is called a 
a)
Group
b)
Period
c)
Row
d)
Column
27.

Vertical columns on the periodic table are called ___?

a)

groups

b)

periods

c)

rows

d)

families

28.

Which color on the image of the periodic table corresponds with the halogens.

a)

red

b)

black

c)

blue

d)

orange

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