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Chemistry Review (Distance Learning)

Total questions: 70

Worksheet time: 6hrs 50mins

Name
Class
Date
1.

Which of the following elements is most likely to have similar properties to those of sodium (Na)?

a)

Magnesium (Mg)

b)

Sulfur (S)

c)

Francium (Fr)

d)

Titanium (Ti)

2.

Which element is most likely to have six valence electrons?

a)

Barium (Ba)

b)

Carbon (C)

c)

Oxygen (O)

d)

Americium (Am)

3.

Which element is most likely to have three electron energy levels?

a)

Argon (Ar)

b)

Lithium (Li)

c)

Boron (B)

d)

Europium (Eu)

4.
Which element has a full valence shell?
a)
F
b)
D
c)
C
d)
E
5.
How many energy levels does an atom of Chlorine have?
a)
2
b)
3
c)
4
d)
7
6.

Which of the following will have a higher electronegativity than arsenic (As)?

a)

Carbon (C)

b)

Neon (Ne)

c)

Antimony (Sb)

d)

Germanium (Ge)

7.

As you move down the periodic table atoms get bigger. This is because ____________.

a)

The atoms have more mass.

b)

The atoms have more protons.

c)

The atoms have more energy levels

d)

The atoms have more neutrons

8.
Electronegativity is...
a)
the ability of an atom to attract/ accept electrons
b)
the ability of an atom to lose electrons
c)
the energy required to remove an electron from a specific atom
d)
how easy it is to make friends. 
9.
Ionization energy is...
a)
the energy required to add an electron to a specific atom
b)
how much energy it takes to remove an electron from an atom
c)
the energy required to shield the outer electrons from the nucleus
d)
a measure of the ability of an atom to attract electrons
10.

Electronegativity __________ from left to right within a period and __________ from top to bottom within a group.

a)

decreases, increases

b)

increases, increases

c)

increases, decreases

d)

stays the same, increases

11.

Atomic radius generally increases as we move __________.

a)

down a group and from right to left across a period

b)

up a group and from left to right across a period

c)

down a group and from left to right across a period

d)

up a group and from right to left across a period

12.

When an atom loses an electron, it forms a(n)

a)

anion

b)

cation

c)

polyatomic ion

d)

neutral ion

13.

A chemical bond that forms when atoms share electrons is always a(n)

a)

polar bond

b)

ionic bond

c)

metallic bond

d)

covalent bond

14.

When two fluorine atoms share a pair of electrons, the bond that forms is a(n)

a)

Polar covalent bond

b)

Ionic bond

c)

Nonpolar covalent bond

d)

Double bond

15.

Why is a rock salt crystal likely to shatter when struck?

a)

When ions with the same charge are pushed closer together, they repel one another

b)

The electrons are removed from the element

c)

The protons are removed from the element

d)

When ions with opposite charges are pulled farther from each other, the crystal shatters

16.

Why do ionic compounds include at least one metal?

a)

Metals form anions

b)

Metals form cations

c)

Metals tend to acquire electrons from anions

d)

Metals do not attempt to gain a stable configuration

17.

Metallic bonds form bonds between

a)

Cations and protons

b)

Anions and protons

c)

Anions and electrons

d)

Cations and free electrons

18.

The energy applied to an outer electron to remove it from its atom is ____.

a)

Attraction energy

b)

Ionization energy

c)

Electronegativity

d)

Atomic radius

19.

Elements on the left side of the Periodic Table have a greater attraction for electrons than elements on the right.

a)

True

b)

False

20.

Which type of bond results in a crystal lattice?

a)

metallic bond

b)

ionic bond

c)

nonpolar covalent bond

d)

polar covalent bond

21.

LiCl2

a)

Ionic

b)

Covalent

c)

Metallic

22.

Double bonds involve how many electrons?

a)

2

b)

4

c)

6

d)

8

23.

Which of the following is a diatomic molecule?

a)

CO2

b)

H2O

c)

CO

d)

H2

24.

NaBr

a)

Ionic

b)

Covalent

c)

Metallic

25.

S2Cl3

a)

Ionic

b)

Covalent

c)

Metallic

26.

O2

a)

Ionic

b)

Covalent

c)

Metallic

27.
What is the proper name for CaCl2?
a)
Calcium dichloride
b)
Monocalcium dichloride
c)
Calcium chloride
d)
Calcium chlorine
28.

What is the name for AlBr3?

a)

aluminum bromide

b)

aluminum tribromide

c)

aluminum bromine

d)

monoaluminum tribromide

29.
Name this compound:
Cs2S
a)
cesium sulfide
b)
cesium sulfate
c)
cesium II sulfate
d)
cesium II sulfide
30.
Name this compound.
MgF2
a)
magnesium fluoride
b)
manganese Phosphide
c)
magnesium(III) fluoride
d)
magnesium fluoride(II)
31.
What is the name of K2O?
a)
dipotassium monoxide
b)
dipotassium oxygen
c)
Potassium oxide
d)
Potassium oxygen
32.

The name of FeCl₂ is

a)

iron chloride

b)

iron (II) chloride

c)

iron (I) chloride

d)

iron dichloride

33.
What is the formula for sulfur pentoxide?
a)
SO2
b)
SO3
c)
SO4
d)
SO5
34.

What is the name of the compound Na2(SO4)?

a)

Sodium sulfate

b)

Sodium sulfide

c)

Sodium sulfite

d)

Sodium sulfuroxide

35.

What is the oxidation number for Oxygen?

a)

-2

b)

+2

c)

+1

d)

-1

36.

Which reaction describes a synthesis reaction?

a)

Ba(OH)2 + 2HCl → BaCl2 + 2H2O

b)

CH4 + 2O2 → CO2 + 2H2O

c)

Zn + CuSO4 → Cu + ZnSO4

d)

2H2 + O2 → 2H2O

37.

3Ca + 2AlCl3 --> 3CaCl2 + 2Al

a)

Synthesis

b)

Decomposition

c)

Single displacement

d)

Double displacement

38.
3KOH + H3PO4 --> K3PO4 + 3H2O
a)
Synthesis 
b)
Decomposition
c)
Single displacement
d)
Double displacement
39.
2Pb(NO3)2 --> 2PbO + 4NO2 + O2
a)
Synthesis 
b)
Decomposition
c)
Single displacement
d)
Combustion
40.
What type of equation is the following:
C4H10 + O2 → CO2 + H2O
a)
Combustion
b)
Decomposition
c)
Single Replacment
d)
Double Replacement
41.
Which of the following reactions is balanced?
a)
2CH4 + O2 -> CO2 + H2O
b)
CH4 + 2O2 -> CO2 + H2O
c)
CH4 + 2O2 -> CO2 + 2H2O
d)
None of the chemical equations are balanced.
42.

Balance the following equation:

HCN + CuSO4 → H2SO4 + Cu(CN)2

a)

2HCN + CuSO4 → H2SO4 + Cu(CN)2

b)

HCN + 7CuSO4 → 3H2SO4 + 8Cu(CN)2

c)

HCN + 2CuSO4 → H2SO4 + 2Cu(CN)2

43.

Balance the following equation

AgNO3 + Cu → Cu(NO3)2+ Ag

a)

2AgNO3 + 2Cu → 3Cu(NO3)2 + Ag

b)

2AgNO3 + Cu → Cu(NO3)2 + 2Ag

c)

AgNO3 + Cu → 2Cu(NO3)2 + Ag

d)

3AgNO3 + 2Cu → 3Cu(NO3)2 + 2Ag

44.

Why must chemical equations be balanced?

a)

So that the chemical reaction doesn't explode

b)

The reaction won't happen until it is balanced

c)

Matter cannot be created or destroyed in a chemical reaction

d)

None of these

45.

In the chemical reaction below, Ca(NO3)2 & 2NaOH are the _________.


Ca(NO3)2 + 2NaOH → 2NaNO3 + Ca(OH)2

a)

reactants

b)

products

c)

yield

d)

catalyst

46.

P4 + O2 → P2O3

a)

3P4 + O2 → 2P2O3

b)

P4 + O2 → 2P2O3

c)

P4 + 3O2 → 2P2O3

d)

P4 + 2O2 → 3P2O3

47.

AgNO3 + Cu → Cu(NO3)2 + Ag

a)

2AgNO3 + 2Cu → 3Cu(NO3)2 + Ag

b)

2AgNO3 + Cu → Cu(NO3)2 + 2Ag

c)

AgNO3 + Cu → 2Cu(NO3)2 + Ag

d)

3AgNO3 + 2Cu → 3Cu(NO3)2 + 2Ag

48.

HCN + Cu(SO4) → H2(SO4) + Cu(CN)2

a)

2HCN + CuSO4 → H2SO4 + Cu(CN)2

b)

HCN + 7CuSO4 → 3H2SO4 + 8Cu(CN)2

c)

HCN + 2CuSO4 → H2SO4 + 2Cu(CN)2

d)

10HCN + 15CuSO4 → 12H2SO4 + 12Cu(CN)2

49.
Which of the following statements is correct?
a)
Blue litmus paper turns red when placed in a base.
b)
Red litmus paper turns blue when placed in a base.
c)
Blue litmus paper stays blue when placed in an acid.
d)
Red litmus paper stays red when placed in a base.
50.
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
51.
Acids are identified by the following ion:
a)
H3O+
b)
H2O
c)
OH-
d)
ClO4-
52.
Bases are identified by the following ion:
a)
H3O+
b)
H2O
c)
OH-
d)
ClO4-
53.
______ are proton acceptors.
a)
Acids
b)
Bases
54.
______ are proton donors.
a)
Acids
b)
Bases
55.

______ is the reaction between an acid and a base; the reaction yields H2O and a salt.

a)

Neutralization

b)

Acid / Base conjugation

c)

Concentration strength

d)

Molarity

56.

Which identifies a substance whose particles are dissolved in a solution?

a)

solvent

b)

solute

c)

solid

d)

ion

57.

The process in which an ionic compound separates into ions as it dissolves is called ____.

a)

dispersion

b)

dissociation

c)

ionization

58.

The process in which particles dissolve by breaking apart and scattering is called _____.

a)

dispersion

b)

dissociation

c)

ionization

59.

The process where an ionic compound separates into ions as it dissolves.

a)

Dissociation

b)

Dispersion

c)

Ionization

d)

Neutralization

60.
The image depicts which process?
a)
dissociation
b)
dispersion
c)
ionization
d)
neutralization
61.
_____ is represented by the 42He
a)
alpha particle
b)
beta particle
c)
gamma rays
62.
_____ is represented by the symbol -01e 
a)
alpha particle
b)
beta particle
c)
gamma rays
63.
What type of reaction is represented by the following?
24395Am→ 23993Np + 42He
a)
alpha decay
b)
beta decay
c)
gamma decay 
d)
delta decay
64.
Fill in the mission requirements.
21084Po → 20682Pb + _____
a)
-01e
b)
42He
c)
H3O+
d)
OH-
65.
Fill in the mission requirements.
146C → 147N + _____
a)
-01e
b)
42He
c)
H3O+
d)
OH-
66.

The type of reaction that occurs in the sun

a)

fission

b)

fusion

c)

neutralization

d)

ionization

67.

nuclear power plants are based on the principles of

a)

nuclear fission

b)

nuclear fusion

68.

Identify the missing substance in each of the following nuclear reactions.

_____→13756 Ba + 0−1B

a)

13755Ba

b)

13757La

c)

13856Ba

d)

13755Cs

69.
Half-life is
a)
the name of an awesome video game
b)
the amount of time needed for half a radioactive sample to decay
c)
about 40 years for most men.
d)
the time needed for  all of a sample to decay
70.

finish the equation


22688Ra --> ____ + 22688Ra

a)

42He

b)

0-1e

c)

y

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