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Worksheets

PA-7H

Total questions: 13

Worksheet time: 7mins

Name
Class
Date
1.

What is the chemical formula for Sulphur

a)

U

b)

Su

c)

Na

d)

S

2.

What is the chemical formula for Carbon

a)

Cb

b)

A

c)

Ca

d)

C

3.

What is Elements?

a)

Elements are the smallest particle of a

substance.

b)

When two or more atoms join

together to form an Elements

c)

An element is a pure substance that is made up of

only one kind of atoms

d)

An Element is a substance that is formed

when two or more elements combine

chemically.

4.

Chemical symbol for sodium

a)

So

b)

No

c)

S

d)

Na

5.

What is the Chemical Symbol of Copper?

a)

C

b)

Co

c)

Cu

d)

Cp

6.

What is the Chemical Symbol of Iron?

a)

Fe

b)

Io

c)

F

d)

Ir

7.

Ca is

a)

calcium

b)

carbon

c)

calcite

d)

carbonate

8.

H is

a)

hydrogen

b)

hydrate

c)

hydroxyl

d)

halite

9.

Which of the following is a metal.

a)

Carbon

b)

Hydrogen

c)

Gold

d)

nitrogen

10.

Metals can be hammered into thin sheets. This property is called

a)

ductility

b)

sonority

c)

malleability

d)

strength

11.

Calcium + Fluorine -->

a)

Calcium fluorine

b)

Calcium fluoride

c)

Fluorine calcium

d)

Fluoride calcium

12.

What does the "thermal" in thermal decomposition mean?

a)

sulfur

b)

catalyst

c)

heat

d)

oven

13.
Thermal decomposition is also known as
a)
breaking apart by heating
b)
heating and building
c)
breaking apart by cooling
d)
cooling and building