Atoms, elements and compounds

Question 1

Which of these is a non-metal element?

Accepted Answer

H, Cl

Question 2

When magnesium reacts with oxygen what compound will be formed?

Accepted Answer

Magnesium oxide

Question 3

Carbon is a non-metal that can conduct electricity?

Accepted Answer

True

Question 4

Which of these is true of mixtures?

Accepted Answer

They do not have a fixed formula, Can be separated by physical means

Question 5

All metals are magnetic

Accepted Answer

False

Question 6

Which of these is true of compounds?

Accepted Answer

They have a fixed chemical formula

Question 7

How many atoms are there in the glucose molecule C6H12O6 ?

Accepted Answer

24

Question 8

The name of the compound in the picture is?

Accepted Answer

Water

Question 9

Water has the formula H2O which picture shows molecules of water?

Accepted Answer

I

Question 10

How many different elements are in the compound glucose C6H12O6?

Accepted Answer

3

Question 11

Which of these pictures shows an element?

Accepted Answer

X

Question 12

Which of these is not a property of most non-metals?

Accepted Answer

Good conductor of electricity, Good conductor of heat

Question 13

What is shown in picture G?

Accepted Answer

A mixture of compounds

Question 14

When sulphur dioxide dissolves in water in the Earth&#x27;s atmosphere what is formed?

Accepted Answer

Acid rain

Question 15

When magnesium burns in oxygen which compound is formed?

Accepted Answer

Magnesium oxide

Question 16

The molecule shown in the picture is?

Accepted Answer

A compound

Question 17

A compound with the formula FeS contains which 2 elements?

Accepted Answer

Iron & Sulphur

Question 18

Which of these is a property of all metals?

Accepted Answer

Conducts electricity, Shiny, Hard

Question 19

What does picture B show?

Accepted Answer

A mixture of elements

Question 20

Which of the pictures shows atoms of a solid element?

Accepted Answer

H

Question 21

Atoms of 2 or more different elements chemically bonded together make a ?

Accepted Answer

Compound

Question 22

Which of these is a non-metal element?

Accepted Answer

Oxygen

Question 23

Which side of the periodic table are all the metals found in?

Accepted Answer

Left hand side

Question 24

What is the name of the element with symbol K?

Accepted Answer

Potassium

Question 25

Which picture shows a compound made up of 3 different elements?

Accepted Answer

Z

Question 26

A list of all the known elements is called?

Accepted Answer

The periodic table

Question 27

Which of these elements will rust?

Accepted Answer

Iron

Question 28

What does picture D show?

Accepted Answer

A mixture of elements and compounds

Question 29

Which of these elements burns with a bright white flame?

Accepted Answer

Mg

Question 30

What is the chemical formula of the molecule shown in the picture?

Accepted Answer

H2O

Question 31

Elements in the periodic table can be arranged into 2 groups called?

Accepted Answer

metals and non-metals

Question 32

Which picture could be Carbon monoxide; formula CO?

Accepted Answer

Y

Question 33

In chemistry a pure substance is known as?

Accepted Answer

An element

Question 34

Which pictures show compounds?

Accepted Answer

C

Question 35

In chemistry a Pure substance consists of?

Accepted Answer

One type of atoms

Question 36

Sulphur dioxide is formed when which two elements react?

Accepted Answer

Sulphur and Oxygen

Question 37

What is name of the element with symbol Mg?

Accepted Answer

Magnesium

Question 38

Which of these diagrams show chemical elements?

Accepted Answer

1 3 5

Question 39

A compound containing only Sodium & Chlorine would be called?

Accepted Answer

Sodium chloride

Question 40

Which pictures show elements?

Accepted Answer

B, A

Question 41

What is the name of the compound with the formula FeS?

Accepted Answer

Iron sulphide

Question 42

A compound containing Copper, Sulphur & Oxygen would be called?

Accepted Answer

Copper sulphate

Atoms, elements and compounds

Questions 42

Atoms, elements and compounds

Questions 42