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CHS 8j Elements and compounds quiz

Total questions: 50

Worksheet time: 31mins

Name
Class
Date
1.

Who created the periodic table?

a)

Dimitri Mendeleev

b)

Isaac Newton

c)

Albert Einstein

d)

Marie Curie

2.

Which is the first element in the periodic table?

a)

Hydrogen

b)

Helium

c)

Nitrogen

d)

Argon

3.

What state is the metal mercury at room temperature?

a)

Liquid

b)

Solid

c)

Gas

d)

Plasma

4.

How many atoms are there in a molecule of carbon dioxide (CO2)?

a)

1

b)

2

c)

3

d)

4

5.

What is the chemical symbol for gold?

a)

Au

b)

Ag

c)

G

d)

Go

6.

What happens to a piece of magnesium if you burn it?

a)

Its mass increases

b)

Its mass decreases

c)

Its mass stays the same

d)

It turns blue

7.

What is the chemical symbol for iron?

a)

Ir

b)

I

c)

Fe

d)

F

8.

On which side of the periodic table would you find the non-metals?

a)

Top left

b)

Top right

c)

Bottom left

d)

Bottom right

9.

Which element has the symbol 'Na'?

a)

Sodium

b)

Potassium

c)

Lithium

d)

Calcium

10.

Chlorine is a yellow coloured gas. What is the chemical symbol for chlorine?

a)

C

b)

Ch

c)

Cl

d)

Cn

11.

True or False:

Metals are good conductors of electricity.

a)

True

b)

False

12.

What is an element?

a)

A substance with only one type of atom

b)

A substance made of two or more atoms

c)

A substance made of more than one type of atom

13.

Which of the following are metals?

a)

Copper

b)

Calcium

c)

Oxygen

d)

Nitrogen

14.

Which of the following are non-metals?

a)

Potassium

b)

Iron

c)

Oxygen

d)

Helium

15.

What is the chemical formula of carbon dioxide?

a)

CO

b)

CO2

c)

C20

d)

C202

16.

What is the chemical formula of carbon monoxide?

a)

CO

b)

CO2

c)

C20

d)

C202

17.

Which of these are common properties of metals?

a)

They're malleable (can be hammered into shape)

b)

They conduct electricity

c)

They have a high density

d)

They're gases

18.

How many atoms are present in a molecule of sulfuric acid?

a)

3

b)

5

c)

7

d)

9

19.

How many atoms are present in a molecule of water?

a)

2

b)

3

c)

4

d)

5

20.

When copper and oxygen react together they form a chemical called:

a)

Copper oxygen

b)

Copper oxide

c)

Oxygen copperide

d)

Oxycopper

21.

Which element has this symbol?

a)

Silicon

b)

Silver

c)

Sodium

d)

Sulfur

22.

Which element has this symbol?

a)

Neon

b)

Nitrogen

c)

Nickel

d)

Neodymium

23.

What is the chemical symbol for nitrogen?

a)

N

b)

Ni

c)

Ne

d)

No

24.

Which elements are present in this chemical?

a)

Potassium, oxygen and hydrogen

b)

Krypton, oxygen and hydrogen

c)

Potassium and hydroxide

d)

Sodium, oxygen, hydrogen

25.

What is the formula for magnesium oxide?

a)

MgO

b)

MgO2

c)

Mg2O

d)

MgOx

26.

Name this chemical.

a)

Copper sulfur oxide

b)

Copper sulfate

c)

Copper sulfide

d)

Sulfur copperate

27.
How many Calcium atoms are in this compound? 
Ca (OH)2
a)
2
b)
3
c)
1
d)
4
28.

Is sugar (C12H22O11) an element or a compound?

a)

Element

b)

Compound

29.

Is water an element or a compound?

a)

Element

b)

Compound

30.

Carbon (C) is considered an element while Carbon Dioxide (CO2) is considered a compound. That is because carbon dioxide is...

a)

a gas

b)

made of two elements

c)

given off by plants

d)

useful to us

31.

This image is a model of...

a)

an element

b)

a compound

c)

a mixture

32.

This image is a model of...

a)

an element

b)

a compound

c)

a mixture.

33.

This image is a model of...

a)

an element

b)

a compound

c)

a mixture

34.

Is this image showing an element, a mixture, or a compound?

a)

element

b)

mixture

c)

compound

35.

In the periodic table, metals are found...

a)

on the left-hand side

b)

on the right-hand side

c)

in the middle

d)

along the top.

36.

A green powder is heated & a gas is given off while it turns to a black solid. This describes

a)

Physical Change

b)

Chemical Change

c)

Change in State

d)

Change in Temperature

37.

Which of the following could indicate that a chemical change took place?

a)

Change in color

b)

Production of Energy

c)

Formation of Gas

d)

All are correct

38.

Which type of change is most often easily reversed?

a)

Chemical

b)

Physical

c)

Both a physical and chemical change.

d)

Neither a physical or chemical change.

39.

Identify what type of change happening in the picture below...

a)

Chemical Change

b)

Physical Change

c)

Endothermic Reaction

d)

Exothermic Reaction

40.

Which statement is correct?

a)

You can reverse a chemical change

b)

You can reverse a physical change

c)

Chemical changes always require heating

d)

Physical changes give off gas

41.

Which element has this chemical symbol?

a)

Zinc

b)

Zirconium

c)

Zulfur

d)

Sodium

42.

Two of these chemical symbols are wrong. Which ones are they?

a)

Sn

b)

TE

c)

cU

d)

Cu

43.

True or False:

Physical changes cannot be reversed

a)

True

b)

False

44.

Sodium chloride is the scientific name for salt. What is its formula?

a)

NaCl

b)

SoCl

c)

NaC

d)

NaCh

45.

Which of these elements have a symbol that don't match its name?

a)

Iron

b)

Oxygen

c)

Potassium

d)

Nitrogen

46.

What is the chemical symbol for lead?

a)

Ld

b)

L

c)

Pb

d)

Pm

47.

Which are the only two elements that are liquids ate room temperature?

a)

Mercury

b)

Bromine

c)

Oxygen

d)

Iron

48.

What is the name of this piece of equipment?

a)

Crucible

b)

Crumble

c)

Cribicul

d)

Crullicle

49.

What is an alloy?

a)

A mixture of two or more metallic elements

b)

A compound formed by heating two metals together

c)

A mixture of non-metals

d)

Any other metal mixed with iron

50.

Which two metals are mixed together to make bronze?

a)

Copper and tin

b)

Copper and aluminium

c)

Mercury and aluminium

d)

Nickel and tin

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