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Physical Science Chapters 6 and 7

Total questions: 25

Worksheet time: 8mins

Name
Class
Date
1.

Lithium is an alkali metal; which ion would it form?

a)

Li-

b)

Li2-

c)

Li+

d)

Li2+

2.

Oxygen is in group 16 of the periodic table; which ion would it form?

a)

O-

b)

O+

c)

O2-

d)

O2+

3.

Nitrogen (group 15) will __ valence electrons when forming an ionic bond.

a)

gain 1

b)

donate 1

c)

gain 3

d)

donate 3

4.

Beryllium (an alkaline-earth metal) will ____ valence electrons when forming an ionic bond.

a)

lose 4

b)

gain 4

c)

lose 2

d)

gain 2

5.
Magnesium bromide is an ionic compound with the chemical formula MgBr₂.  What does the "2" tell you?
a)
There are 2 bromide ions for every magnesium ion
b)
Bromide has a 2- charge
c)
Bromide has a 2+ charge
d)
There are 2 magnesium ions to every bromide ion
6.

Which is the correct formula for aluminum sulfide?

(Aluminum gives away 3 electrons; sulfur accepts 2.)

a)

AlS

b)

Al3S2

c)

S3Al2

d)

Al2S3

7.

What is the formula for aluminum fluoride?

(Aluminum gives away 3 electrons; fluorine accepts 1.)

a)

AlF

b)

Al7F3

c)

AlF3

d)

Al3F

8.

What is the correct formula for the compound iron(III) oxide?

(Note: Oxygen accepts 2 electrons.)

a)

FeO

b)

Fe2O3

c)

Fe3O2

d)

FeO3

9.
Name the following compound: 
N2O4
a)

Dinitrogen tetroxide

b)

Dinitrogen pentoxide

c)

Nitrogen(IV) oxide

d)

Nitrogen(II) oxide

10.
Name the following compound: 
CCl4
a)

Carbon(IV) chloride

b)

Carbon tetrachloride

c)

Carbon chloride

d)

Monocarbon quadchloride

11.
Name the following compound:
NF3
a)

Nitrogen trifluoride

b)

Mononitrogen trifluoride

c)

Nitrogen fluoride

d)

Nitrogen(III) fluoride

12.
Name the following compound:
H2O
a)

Hydrogen oxide

b)

Dihydrogen(I) oxide

c)

Hydrogen(II) oxide

d)

Dihydrogen monoxide

13.

Write the formula for dinitrogen pentoxide?

a)

NO

b)

N2O5

c)

2NO5

d)

N2O6

14.

What type of reaction is this?

2 C6H14 + 19 O2 → 12 CO2 + 14 H2O

a)

Single Displacement

b)

Double Displacement

c)

Combustion

d)

Decomposition

e)

Synthesis

15.

What type of reaction occurs between an element and a compound?

Zn + 2HCl →\rightarrow ZnCl2 + H2

a)

Synthesis

b)

Decomposition

c)

Single Displacement

d)

Double Displacement

e)

Combustion

16.
Which is an example of a chemical reaction?
a)

Paper cut into small pieces

b)

Chocolate melting in a pan

c)

Flour and sugar mixed in a bowl

d)

Cookies baking in an oven

17.

Which of the following shows the correct way to balance this chemical equation? Fe + O2 →\rightarrow Fe2O3

a)

4Fe + 3O2 →\rightarrow 2Fe2O3

b)

2Fe + 3O2 →\rightarrow Fe2O6

c)

2Fe + 3O2 →\rightarrow 2Fe2O3

d)

None of the options are correctly balanced.

18.

Balance this chemical equation:

KClO3 → KCl + O2

a)

2KClO3 → 4KCl + O2

b)

4KClO3 → 2KCl + 3O2

c)

2KClO3 → 2KCl + 3O2

d)

KClO3 → KCl + O3

e)

3KClO3 → 3KCl + 2O2

19.

What coefficient should go in front of HCl?

2Mg + _HCl →\rightarrow 2MgCl2 + H2

a)

1

b)

2

c)

3

d)

4

e)

5

20.

When writing a chemical equation, reactants are on the _, and products are on the _.

a)

top, bottom

b)

right, left

c)

left, right

d)

bottom, top

21.

When balancing the equation 2Fe + _Cl2 → 2FeCl3, what is the correct coefficient for Cl2?

a)

1

b)

2

c)

3

d)

4

e)

5

22.
How many oxygens are in Al₂(SO₄)₃?
a)
4
b)
12
c)
7
d)
24
23.

What are the smaller numbers that you CANNOT change in a chemical equation (example: the 2 in H2O)? 

a)

Coefficients

b)

Products

c)

Reactants

d)

Subscripts

e)

Exponents

24.

What type of reaction is this? 

Pb(NO3)2  +  2KI →\rightarrow PbI2 + 2KNO3

a)

Synthesis 

b)

Decomposition 

c)

Single Displacement

d)

Double Displacement 

e)

Combustion

25.

What type of reaction is this?  

2H2O2 →\rightarrow  2H2O + O2

a)

Synthesis

b)

Decomposition 

c)

Single Displacement

d)

Combustion 

e)

Double Displacement

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