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Chemistry-General revision-Part 2

Total questions: 127

Worksheet time: 3hrs 47mins

Name
Class
Date
1.
Which of these grouping of elements could have the characteristic of luster (shiny)?
a)
Metal
b)
Nonmetal
c)
metalloids
d)
Both metals and metalloids
2.
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
3.
Brittle
a)
Metal
b)
Nonmetal
4.
Iron is a good conductor, malleable and magnetic. What type of element is Iron? 
a)
Metal
b)
Nonmetal
c)
Metalloid
d)
Pretty
5.

Which of the following metals is used for making foil to pack foodstuff?

a)

Aluminium

b)

Mercury

c)

Sodium

d)

Copper

6.

Sulphur reacts with oxygen to form:

a)

Sulphur nitrate

b)

Sulphur dioxide

c)

Sulphate

d)

Sulphide

7.

Metals react with water to form ______gas.

a)

Nitrogen

b)

Oxygen

c)

Hydrogen

d)

Ozone

8.

Which of the following statements is incorrect?

a)

Metals have lustre

b)

Metals are malleable

c)

Metals are good conductors of electricity

d)

Metals are poor conductors of heat

9.

A sample of gas was found to burn with a pop. Which of the following could have given this result?

a)

Carbon Dioxide

b)

Hydrogen

c)

Nitrogen

d)

Oxygen

10.

The arrangement of metals in a series in the decreasing order of their reactivity is called (a)   .

11.

Metals are sonorous in nature. What is sonorous?

a)

Making into powder

b)

Drawn into wires

c)

Make sound on beating

d)

None of these

12.
What does ductile mean?
a)
electricity flows easily
b)
quacks like a duck
c)
can be drawn into a wire
d)
able to bend
13.

Tick 2 metals that are magnetic.

a)

Zinc

b)

Steel

c)

Iron

d)

Brass

14.

What causes metals to rust or tarnish?

a)

Water and oil

b)

Water and air

c)

Air and oil

d)

Paint and air

15.
A mixture of different metals is known as
a)
Metal mix
b)
cement
c)
Alloy
d)
atom
16.
What is a conductor?
a)
Heat and electricity move through them easily
b)
able to be drawn into a wire
c)
able to be hammered into different shapes
d)
shiny
17.
When an object changes shape when struck by a hammer.
a)
luster
b)
malleable
c)
brittleness
d)
ductile
18.

Metals react with water to produce

a)

Metal hydroxide

b)

Hydrogen gas

c)

Metal hydroxide and hydrogen gas both

d)

None of the above

19.

Zinc is more reactive than

a)

Copper

b)

Iron

c)

Copper and Iron both

d)

Only iron

20.

Sodium is very reactive metal because it reacts vigorously with oxygen and water and

a)

Generate heat

b)

Catches fire

c)

Stored in kerosene

d)

All of the above

21.

Look at part of the reactivity series? Which one of the following statements is correct?

a)

zinc is more reactive than magnesium

b)

copper is the most reactive

c)

tin is more reactive than lead

d)

lead is more reactive than aluminium

22.

The list which contains only metals is .......

a)

aluminium, copper, nitrogen

b)

iron, oxygen, hydrogen

c)

iron, silver, aluminium

d)

iron, sulphur, copper

23.
Which metal reacts with oxygen to form a dull black compound?
a)
Iron
b)
Aluminium
c)
Copper
d)
Magnesium
24.
Reactivity is a(n) ________property of Metal
a)
Chemical Property
b)
Physical Property
25.
Which of the following is NOT a clue that a chemical change has occurred?
a)
change in color
b)
production of gas
c)
change in termperature
d)
change in shape
26.
Complete the equation below. 
Iron + Oxygen --> 
a)
Iron oxygen
b)
Iron oxide
c)
Iron oside
d)
Ion oxide
27.

Write the products formed when sodium reacts with water?

a)

sodium oxide and hydrogen

b)

sodium hydroxide and hydrogen

c)

sodium hydroxide and oxygen

d)

sodium hydroxide and carbon dioxide

28.

Which gas is always produced when a metal reacts with water?

a)

Oxygen

b)

Carbon Dioxide

c)

Hydrogen

d)

Carbon Monoxide

29.

Which gas turns lime water milky?

a)

Nitrogen

b)

Hydrogen

c)

Carbon Dioxide

d)

Oxygen

30.

Complete the word equation below.


Magnesium + oxygen --> .....

a)

Magnesium

b)

Magnesium oxide

c)

Oxides

d)

Magnesium oxide + water

31.
The least reactive in oxygen in the list is 
a)
iron
b)
zinc
c)
copper
d)
lead
32.
Which one of the following metals reacts most vigorously with cold water?
a)
Sodium
b)
Magnesium
c)
Copper
d)
Zinc
33.
Which metal is more reactive than calcium?
a)
magnesium
b)
potassium
c)
silver
d)
aluminum
34.
When sodium reacts with hydrochloric acid, what is the name of the salt formed?
a)
Sodium Hydride
b)
Sodium Chloride
c)
Sodium Hydrochloric
d)
Sodium Chlorine
35.
When potassium reacts with sulphuric acid, what is the name of the salt produced?
a)
Potassium Sulphide
b)
Potassium Sulphur
c)
Potassium Sulphuric
d)
Potassium Sulphate
36.

Which metal reacts fastest with acid?

a)

Copper

b)

Iron

c)

Zinc

d)

Magnesium

37.
Acid + Metal --> ?
a)
Salt + Water
b)
Salt + Hydrogen
c)
Salt
d)
Hydrogen
38.
the starting materials in a chemical reaction
a)
Products
b)
Reactants
c)
Starters
d)
Enders
39.
a substance that is formed as the result of a chemical reaction
a)
Product 
b)
Reactant
c)
Starters
d)
Enders
40.

Magnesium + ________ ——> magnesium oxide

a)

Oxygen

b)

Hydrogen

c)

Carbon dioxide

41.
Iron + Hydrochloric acid --> ?
a)
iron sulfate + water
b)
iron + hydrogen
c)
iron chloride + hydrogen
d)
iron chloride + water
42.
Magnesium + sulphuric acid --> ?
a)
magnesium sulfate + water
b)
magnesium sulfate + hydrogen
c)
magnesium chloride + hydrogen
d)
magnesium chloride + water
43.
Zinc + nitric acid --> ?
a)
zinc sulfate + water
b)
zinc sulfate + hydrogen
c)
zinc nitrate + hydrogen
d)
zinc chloride + water
44.
Which gas gives out a 'squeaky pop' when a lit splint is placed in it?
a)
hydrogen
b)
oxygen
c)
carbon dioxide
d)
nitrogen
45.

Potassium is a metal that is ........ in the series

a)

low

b)

high

c)

very high

d)

very low

46.

In the reactivity series reactivity ..... up the group

a)

increases

b)

decreases

c)

does not change

d)

gets less dangerous

47.

........ is found low in the reactivity series

a)

potassium

b)

sodium

c)

silver

d)

magnesium

48.

What two things cause Iron to rust ?

a)

Water and Oxygen

b)

Air and HCl

c)

Carbon Monoxide and Air

d)

Water and Carbon Dioxide

49.

The smallest part of an element that can exist

a)

Atom

b)

Element

c)

Compound

d)

Mixture

50.

What is the chemical symbol for Magnesium?

a)

Mg

b)

Na

c)

Ma

d)

Au

51.

What is the chemical symbol of Hydrogen?

a)

H

b)

Hy

c)

Hg

d)

He

52.

Copper has the chemical symbol

a)

Cu

b)

Cl

c)

C

d)

Ag

53.

Pure substances made up of atoms of two or more elements, chemically joined together.

a)

Compound

b)

Mixture

c)

Element

d)

Molecule

54.

Two or more pure substances that are not chemically joined but mixed.

a)

Mixture

b)

Compound

c)

Element

d)

Molecule

55.

The particle diagram contains ____ total molecules and ____ total atoms.

a)

4 molecules, 8 atoms

b)

8 molecules, 4 atoms

c)

4 molecules, 4 atoms

d)

8 molecules, 8 atoms

56.

Which of the following represents an element?

a)

H2

b)

H2O

c)

CaCO3

d)

NaCl

57.

Salt has a chemical formula of NaCl.

Salt is a...

a)

Compound

b)

Element

c)

Mixture

d)

None of the Above

58.

How many elements are represented in the compound?

Na2CO3

a)

3

b)

1

c)

2

d)

4

59.

How many atoms are represented in the chemical formulae?

Na2CO3

a)

6

b)

5

c)

2

d)

3

60.

Classify the picture with the correct label.

a)

Compound

b)

Mixture of Compounds

c)

Mixture of Elements

d)

Element

61.

Classify the picture with the correct label.

a)

Mixture of Elements

b)

Compound

c)

Element

d)

Mixture of Elements and Compounds

62.

Classify the picture with the correct label.

a)

Mixture of Elements & Compounds

b)

Element

c)

Compound

d)

Mixture of Compounds

63.

Which description below is a true statement about the diagram?

a)

The diagram can be classified as an element and a molecule

b)

The diagram can be classified as a compound

c)

The diagram can be classified as a mixture of two compounds

d)

The diagram can be classified as a mixture of two elements

64.

These are found on the Periodic Table.

a)

elements

b)

compounds

c)

mixtures

65.

Water is an element.

a)

False

b)

True

66.

The table shows two sets of substances. Which terms best identify both sets?

a)

Set 1: compounds; Set 2: elements

b)

Set 1: elements; Set 2: compounds

c)

Set 1: elements and compounds; Set 2: elements

d)

Set 1: compounds; Set 2: elements and compounds

67.

What elements are found in the shaded region?

a)

Metals

b)

Non-metals

c)

Metalloids

68.

What elements are found in the shaded region?

a)

Non-metals

b)

Metals

c)

Metalloids

69.

Which elements are good conductors of heat and electricity?

a)

Metals

b)

Non-metals

c)

Metalloids

70.

Which of the following the most reactive in dilute acid

a)

magnesium

b)

calcium

c)

aluminum

d)

zinc

71.
The least reactive in oxygen in the list is 
a)
iron
b)
zinc
c)
copper
d)
lead
72.
Which one of the following metals reacts most vigorously with cold water?
a)
Sodium
b)
Magnesium
c)
Copper
d)
Zinc
73.
Which metal is more reactive than calcium?
a)
magnesium
b)
potassium
c)
silver
d)
aluminum
74.
Which of the following is NOT a clue that a chemical change has occurred?
a)
change in color
b)
production of gas
c)
change in termperature
d)
change in shape
75.

Which metal reacts fastest with water

a)

Gold

b)

Sodium

c)

Zinc

d)

Iron

76.

Which metal reacts the slowest with water?

a)

Gold

b)

Sodium

c)

Zinc

d)

Iron

77.

Which metal reacts slowest with acid?

a)

Copper

b)

Iron

c)

Zinc

d)

Magnesium

78.

What is the symbol for iron?

a)

I

b)

Ir

c)

F

d)

Fe

79.

What is the symbol for magnesium?

a)

M

b)

Mg

c)

Mn

d)

Ma

80.

Carbon

a)

C

b)

Ca

c)

Cu

d)

Cr

81.

Silver

a)

S

b)

Ag

c)

Au

d)

Sn

82.

Sulfur

a)

S

b)

Sn

c)

Na

d)

Sr

83.

O

a)

Oxygen

b)

Carbon

c)

Boron

d)

Silicon

84.

K

a)

Tungsten

b)

Fluoride

c)

Krypton

d)

Potassium

85.
Na is the chemical symbol for which element? 
a)
Sodium
b)
Nitrogen
c)
Neon
86.
K is the chemical symbol for which element? 
a)
Krypton
b)
Potassium
c)
Knox
87.
Evidence of a chemical reactions is anything that shows - 
a)
a new substance has formed
b)
a solid dissolved in a liquid
c)
interaction between 2 gases
d)
a change in the state of matter
88.
One of the signs of a chemical reaction taking place is:
a)
Bubbles are produced 
b)
Reactants are not combining
c)
Products are not forming
d)
Color is not changing
89.
You know you a chemical reaction has occurred if 
a)
there is a precipitate.
b)
there is a color change.
c)
there is a temperature change.
d)
All of these answers are evidence.
90.
A clear liquid from a flask is poured into another clear liquid in a beaker. Which of the following results of this procedure would indicate a new substance was formed?
a)
The level of the substance in the beaker is higher after the other liquid is added.
b)
A yellow solid forms and then settles to the bottom of the beaker.
c)
Small white crystals are left behind in the flask that held the first liquid.
d)
The mass of the combined liquids is greater than either original liquid.
91.
Which of the following is an example that includes evidence of a chemical reaction?
a)
A sample of zinc is placed in water and it settles to the bottom
b)
A solid block of ice is heated and it completely melts into a liquid. 
c)
Sugar that is burned gives off an odor and turns brown and then black.
d)
A tomato is placed into a blender and chopped up into smaller pieces.
92.
Four students performed four different investigations by combining different substances. Which of the observations is most indicative of a chemical reaction?
a)
investigation 1
b)
investigation 2
c)
investigation 3
d)
investigation 4
93.
A student places a piece of a potato into a container of hydrogen peroxide. One observation the student makes is that bubbles form around the potato. The presence of bubbles might indicate the formation of a new substance because bubbles - 
a)
could show that a gas is forming.
b)
always rise to the top of a liquid. 
c)
are almost always perfectly spherical.
d)
usually burst after a few minutes.
94.

Dissolving salt is a

a)

Chemical change

b)

Physical change

95.

The glow stick reaction is a

a)

Chemical change

b)

Physical change

96.

The production of carbon dioxide gas when baking soda and vinegar reacted indicated a _____________.

a)

Chemical change

b)

Physical change

97.

In a chemical reaction, no new atoms are created, and no atoms are _________________.

a)

Destroyed

b)

Created

98.

Increasing the amount of reactants may increase the amount of _________________.

a)

Products

b)

Reactants

99.

Sodium bicarbonate is a __________________.

a)

Reactant

b)

Product

100.

In the reaction above water is a ________________.

a)

Reactant

b)

Product

101.

The arrow in a chemical equation means _______________.

a)

Equals

b)

Yields

102.

Carbon dioxide bubbles produced in our lab reactions are a _______________.

a)

Solid

b)

Liquid

c)

Gas

103.

Which statement does not describe a chemical change?

a)

burning a log in a campfire

b)

baking cookies

c)

breaking glass

d)

digesting food

104.

How many electrons do you see in this image?

a)

4

b)

2

c)

3

d)

6

105.

A substance that cannot be broken down into any other substance is known as

a)

a solution

b)

a mixture

c)

an element

d)

a compound

106.

Select the TWO examples of elements?

a)

A substance made up of only one type of atom

b)

O2

c)

Baking Soda

d)

NaCl (table salt)

107.
Air is a compound.
a)
True
b)
False
108.
Composition of compounds can be separated.
a)
True
b)
False
109.
Compounds are made up of two or more atoms physically combined.
a)
True
b)
False
110.
Which of the following is not a compound?
a)
HCl
b)
Cl
c)
NaCl
d)
CO2
111.
Does this picture show a compound?
a)
No
b)
Yes
112.
Can compounds be found in the periodic table?
a)
Yes
b)
No
113.
A mixtures is a combination of two or more____________ in which no new kinds of matter are formed.
a)
 subtances
b)
parts
c)
leaves
d)
pebbles
114.
Making a mixture results in ___________________ only.
a)
chemical reactions
b)
separate parts
c)
physical changes
d)
two subtances
115.
Sand and clay is an example of a mixture of solids.
a)
True
b)
False
116.
The air around was is  a mixture of gases.
a)
True
b)
False
117.
Lemonade is a special mixture called a 
a)
substance
b)
solution
c)
plasma
d)
ingredient
118.
A solution is a mixture of one or more substances _________ evenly into another substance.
a)
dissolved
b)
evaporated
c)
carried
d)
split
119.
A fruit salad is a 
a)
solution
b)
mixture
120.
What is a molecule?
a)
Two or more atoms bonded together
b)
One element
c)
One atom
d)
Solid, Liquid, Gas
121.
What does this image represent?
a)
Atom
b)
Element
c)
Molecule
d)
Marshmallows
122.
When the molecules are moving very fast, the substance is...
a)
Hot
b)
Cold
c)
Room Temperature
d)
Wet
123.
What is the smallest particle?
a)
Element
b)
Molecule
c)
Atom
d)
Plasma
124.
What are the basic building blocks for all matter?
a)
atoms
b)
elements
c)
compounds
d)
chemicals
125.
What do we call a substance consisting of a single atom?
a)
coefficient
b)
element
c)
compound
d)
molecule
126.
What do we call a chemical substance made up of 2 or more different types atoms bonded together?
a)
formula
b)
atom
c)
subscript
d)
compound
127.
When __________ form, the elements lose there individual chemical properties and take on new properties.
a)
compounds
b)
atoms
c)
subscript
d)
formula

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