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2025 Spring Exam - Chemistry

Total questions: 64

Worksheet time: 1hrs 22mins

Name
Class
Date
1.

Alkali metals (Group 1 metals) form

a)

+1 ions

b)

+2 ions

c)

-1 ions

d)

-2 ions

2.

Alkaline Earth metals (Group 2) form

a)

+1 ions

b)

+2 ions

c)

+3 ions

d)

-6 ions

3.

Group 13 metals and Boron form

a)

+3 ions

b)

-5 ions

c)

-3 ions

d)

+5 ions

4.

Hydrogen ...

a)

is the only element that forms more than one ion charge.

b)

forms only +1 ions.

c)

forms only -1 ions

d)

can form +1 ions and -1 ions.

5.

Carbon ...

a)

is the only element that can form more than one ion charge.

b)

can only form +4 ions

c)

can only form -4 ions.

d)

can form +4 ions and -4 ions.

6.

The halogens (Group 17)

a)

have 7 valence electrons.

b)

form -1 ions

c)

are the most reactive family of nonmetal elements.

d)

All of these are true.

7.

The chalcogens (Group 16)

a)

form +2 ions

b)

form -2 ions

c)

form +6 ions

d)

form -6 ions

8.

Noble gas elements (Group 18)

a)

never form ions

b)

are highly reactive

c)

form +8 charged ions

d)

form -8 charged ions

9.

Nonmetals in Group 15

a)

form -3 charged ions

b)

form +5 charged ions

c)

form +3 charged ions

d)

form -5 charged ions

10.

The octet rule ...

a)

is why stop signs are octagons.

b)

describes what elements do to be more stable.

c)

is a rule to live by.

d)

describes why octopus is a delicacy.

11.

Which is true?

a)

Transition metals have 2 valence electrons.

b)

Halogens have 1 valence electron.

c)

Metalloids have 3 valence electrons.

d)

Noble gases form ions.

12.

Which cation is written correctly?

a)

Sr+2

b)

Sr-2

c)

Br-1

d)

K+2

13.

Which anion is written correctly?

a)

I-1

b)

Mg+2

c)

As+5

d)

N-5

14.

nitrate

a)

N-3

b)

NO2-1

c)

NO3-1

15.

nitride

a)

N-3

b)

NO2-1

c)

NO3-1

16.

nitrite

a)

N-3

b)

NO2-1

c)

NO3-1

17.

Cations are formed when an atom ______.

a)

gains electrons

b)

loses electrons

c)

shares electrons

18.

Anions are formed when atoms ___________.

a)

gain electrons

b)

lose electrons

c)

share electrons

19.

In an ionic compound, the ______ always comes first in the formula and the ______always comes last in the formula

a)

anion; cation

b)

cation; anion

c)

cation; polyatomic ion

d)

polyatomic ion; cation

20.
In most cases, when naming you change the ending of the second element to ________.
a)
-ate.
b)
-ite.
c)
-ide.
d)
-ine.
21.
Name this compound: 
KF
a)
Potassium fluoride
b)
Potassium fluorite
c)
Fluorine potasside 
d)
Potassium fluorate
22.

What is the name of the compound Ag2O?

a)

silver oxide

b)

aluminum oxide

c)

copper oxide

d)

gold oxide

23.
The chemical formula of iron (III)bromide is
a)
FeBr
b)
Fe(III)Br
c)
FeBr₃
d)
Fe₂Br₃
24.
What would be the proper chemical formula for combining Al3+ and Cl- :
a)
AlCl3
b)
Al3Cl
c)
AlCl
d)
Al3Cl3
25.

What is the name of the compound Sc(OH)3?

a)

Scandium (III) hydroxide

b)

Scandium (I) hydroxide

c)

Scandium (II) hydroxide

d)

Scandium hydroxide

26.

Name the ionic compound SnSe2

a)

Tin diselenide

b)

Tin (IV) Selenide

c)

Tin selenide

d)

Tin (II) triselenide

27.

The name of FeCl₂ is

a)

iron chloride

b)

iron (II) chloride

c)

iron (I) chloride

d)

iron dichloride

28.
What is the name of N2O3
a)
Nitrogen trioxide
b)
Dinitrogen oxide
c)
Dinitrogen trioxide
d)
Nitrogen oxide
29.
What is the name of Br6F10 ?
a)
Bromium fluoride
b)
Hexabromine fluoride
c)
Bromium decafluoride
d)
none of the above
30.
The chemical formula of sulfur hexabromide is
a)
SBr₆
b)
S₆Br
c)
S(VI)Br
d)
S6Br
31.
The chemical formula of dinitrogen textroxide is
a)
Ni₂O₄
b)
NiO
c)
N₂O₄
d)
NiO₂
32.

Which type of chemical reaction has the following configuration?


Substance + Substance --> Compound


A + B --> AB

a)

Composition/Synthesis

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

33.

Which type of chemical reaction has the following configuration?


Hydrocarbon + Oxygen --> Carbon Dioxide + Water


CxHy + O2 --> CO2 + H2O

a)

Composition/Synthesis

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

34.

Classify the following chemical reaction


BaCl2(aq) + K2CrO4(aq) --> BaCrO4(s) + 2KCl(aq)




a)

Composition/Synthesis

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

35.

Identify the type of reaction...

SnCl2 + 2Li −> 2LiCl + SnSnCl_2\ +\ 2Li\ ->\ 2LiCl\ +\ Sn

a)

Composition

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

36.

Predict the products for the single replacement reaction

2 K + MgBr2 →

a)

2 KMg + Br2

b)

2 KBr + Mg

c)

2KMgBr

d)

2 KCl + I2

37.

In a double replacement reaction between aluminum bromide and potassium sulfate, what will the products be?

a)

aluminum and potassium

b)

aluminum potasside and bromide sulfate

c)

aluminum sulfate and potassium bromide

d)

bromide and sulfate

38.

When silver oxide (Ag2O) undergoes a decomposition reaction, what will the products be?

a)

silver (II) oxide

b)

silver and oxygen

c)

silver chloride

d)

oxygen and gold

39.

In the following single replacement reaction, what elements will sodium (Na) replace?

SELECT ALL THAT APPLY !!!!

___ Na + ___ Zn(NO3)2→ ?

a)

NITRATE

b)

ZINC

c)

NITROGEN

d)

OXYGEN

40.

The Law of Conservation of Mass says:

a)

Matter can be destroyed, but it can't be created.

b)

Matter can be created with any density as long as the volume remains constant.

c)

Matter cannot be created nor destroyed.

d)

Matter can change phases and still be the same substance.

41.

If I have 100 grams of reactants, how many grams of products should I have?

a)

0g

b)

100g

c)

50g

d)

75g

42.

Which choice shows this equation balanced?


K + B2O3 -----> K2O + B

a)

2K + B2O3 -----> K2O + 3B

b)

K + 2B2O3 -----> 4K2O + B

c)

6K + B2O3 -----> 3K2O + 2B

d)

balanced as is.

43.

HCL + NaOH ---> NaCl + H2O


Is this equation balanced?

a)

yes

b)

no

c)

Cannot determine

44.

Choose the answer that shows this equation balanced:


C + S8 ----->CS2

a)

4C + S8 ----->4CS2

b)

3C + S8 -----> 2CS2

c)

C + 2S8 -----> 6CS2

d)

8C + S8 -----> 4CS2

45.
The red numbers in the image below represent ________
a)
subscripts
b)
coefficients
c)
I don't know, and don't want to try
d)
None of the answers are correct
46.
The blue numbers in the image below represent ________
a)
I don't know, and don't want to try
b)
coefficients
c)
subscripts
d)
none of the answers are correct
47.
What is the right ratio of chemicals for the BCE (Balanced Chemical Equation)?__H2SO3 + __KOH--> __H2O+ __K2SO3
a)
2,1 --> 2,1
b)
1,2 --> 1,1
c)
1,2 --> 1,2
d)
1,2 --> 2,1
48.

Al2S3

a)

Soluble

b)

Insoluble

49.

CaCl2

a)

Soluble

b)

Insoluble

50.

Na2CO3

a)

Soluble

b)

Insoluble

51.

BeS

a)

Soluble

b)

Insoluble

52.

Mg(OH)2

a)

Soluble

b)

Insoluble

53.

BaSO4

a)

Soluble

b)

Insoluble

54.
Based on the activity series, will this reaction occur?
Ni (s) + H2O (l) →
a)
Yes
b)
No
55.
Based on the activity series, will this reaction occur?
Br2 (l) + KI (aq) →
a)
Yes
b)
No
56.
Based on the activity series, will this reaction occur?
Au (s) + HCl (l) →
a)
Yes
b)
No
57.

Calculate the molar mass of Ba(C2H3O2)2

a)

255.3 g/mol

b)

237.3 g/mol

c)

228.3 g/mol

d)

196.3 g/mol

58.

Calculate the molar mass of Cu2O.

a)

37 g/mol

b)

45 g/mol

c)

79.5 g/mol

d)

143 g/mol

59.

Calculate the molar mass of NH4NO2

a)

50 g/mol

b)

60 g/mol

c)

64 g/mol

d)

78 g/mol

60.

A sample of silver contains 5.71 x 1022 atoms. How many moles of silver are present?

a)

3.43 x 1046 moles

b)

0.0529 moles

c)

0.0948 moles

d)

10.5 moles

61.

How many atoms are present in a 0.0254 mole sample of gold?

a)

0.25 atoms

b)

1.528 x 1022 atoms

c)

4.22 x 10-25 atoms

d)

5 atoms

62.

Which of the following shows the correct setup to determine the number of moles of molecules in a 12.0 gram sample of Cl2?

a)

12/35.5 mole

b)

12/71 mole

c)

12 moles

d)

12 x 35.5 moles

63.

Determine the mass of 2.40 moles of C6H12

a)

201 g

b)

115 g

c)

230. g

d)

353 g

64.

What is the total mass, in grams, of a 0.75 mole sample of SO2?

a)

16 g

b)

24 g

c)

32 g

d)

48 g

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