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SNC 2P Grade 10 Applied Science: Chemistry

Total questions: 25

Worksheet time: 19mins

Name
Class
Date
1.

Identify this type of reaction:

Al (s) + HCl (aq) → AlCl3 (aq) + H2 (g)

a)

DDR

b)

Synthesis

c)

Combustion

d)

SDR

2.
The following reaction is an example of what reaction type? 
CoCO3 → CoO + CO2
a)
Synthesis
b)
Decomposition
c)
Single Replacement
d)
Double Replacement
3.

Combustion reactions will always involve

a)

Carbon and heat/energy

b)

Nitrogen and heat/energy

c)

Oxygen (O2) and heat/energy

d)

Water and heat/energy

4.
Which of the following is an example of synthesis?
a)
Na + Br2 --> NaBr
b)
KClO3 --> KCl + O2
c)
HgO + Cl2-->HgCl + O2
d)
Cl2 + NaBr --> NaCl + Br2
5.
Which of the following is an example of decomposition?
a)
Na + Br2 --> NaBr
b)
KClO3 --> KCl + O2
c)
HgO + Cl2-->HgCl + O2
d)
Cl2 + NaBr --> NaCl + Br2
6.
The pH of a solution is tested, and it is found to be a basic solution. Of the following choices, what could the pH have been?
a)
3
b)
9
c)
7
d)
5
7.
The atomic number tells you what?
a)
number of electrons
b)
number of protons
c)
number of neutrons
d)
both electrons and protons in an atom.
8.
Each column in the periodic table is called a 
a)
period
b)
group
c)
cluster
d)
unit
9.
The atoms along the staircase are called 
a)
metals
b)
nonmetals
c)
metalloids
d)
noble gases
10.
How many Valance electrons does Iodine Have?
a)
6
b)
16
c)
7
d)
17
11.
How many electrons does Oxygen need to fill its outer shell?
a)
3
b)
4
c)
1
d)
2
12.

In this chemical equation, the elements in red are the_______.

a)

Products

b)

Reactants

c)

Subscripts

d)

Coefficients

13.

These compounds are formed between two or more non-metals.

a)

Ionic

b)

Molecular

14.

The chemical name for P2O5 is:

a)

phosphorus oxide

b)

diphosphorus pentoxide

15.

The chemical name for Li2O is:

a)

lithium oxide

b)

lithium dioxide

16.

The chemical formula for calcium sulphide is:

a)

Ca2S2

b)

CaS

17.

What type of reaction is the following:

K + Cl2 ----> KCl

a)

Synthesis

b)

Decomposition

c)

Single Displacement

d)

Double Displacement

18.

What type of reaction is the following:

KClO3 ------> KCl + O2

a)

Synthesis

b)

Decomposition

c)

Single Displacement

d)

Double Displacement

19.

What type of reaction is the following:

K + CaCl2 ------> KCl + Ca

a)

Synthesis

b)

Decomposition

c)

Single Displacement

d)

Double Displacement

20.

What type of reaction is the following:

PbCl2 + AgNO3 -----> Pb(NO3)2 + AgCl

a)

Synthesis

b)

Decomposition

c)

Single Displacement

d)

Double Displacement

21.

The pH scale is a range from:

a)

1-7

b)

0-14

c)

1-5

22.

A solution with a pH of 6 is considered a(n):

a)

acid

b)

base

c)

neutral

23.

A solution with a pH of 8.3 is considered a(n):

a)

acid

b)

base

c)

neutral

24.

A solution with a pH of 7 is considered a(n):

a)

acid

b)

base

c)

neutral

25.

How many electrons does the element Potassium have? (Atomic number:19; Atomic Mass: 39.1)

a)

19

b)

39

c)

20

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