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Science 9 Unit B section3

Total questions: 76

Worksheet time: 5hrs 35mins

Name
Class
Date
1.

Formula for barium sulfide

a)

B2S3

b)

BaS

c)

Ba2S

d)

BaS2

2.

Name for NaH

a)

sodium hydrogen

b)

potassium hydride

c)

sodium hydride

d)

potassium hydrogen

3.

Formula for lead (II) chloride

a)

PbCl2

b)

Pb2Cl

c)

Pb2Cl3

d)

Pb3Cl2

4.

Name for PBr2

a)

phosphorus bromide

b)

phosphorus dibromide

c)

phosphorus dibromine

d)

phosphorus bromine

5.

Name for LiOH

a)

lithium hydrogen oxide

b)

lithium hydroxide

c)

lithium (II) hydroxide

d)

lithium (I) hydroxide

6.

Formula for iron (II) carbonate

a)

FeCO3

b)

Fe2CO3

c)

FeCO2

d)

Fe2CO2

7.

Name for CO

a)

carbon monoxide

b)

carbon oxide

c)

monocarbon oxide

d)

carbide monoxide

8.

What is Ca3N2 called?

a)

calcium nitride

b)

calcium (II) nitride

c)

calcium nitrogen

d)

tricalcium dinitride

9.

Name the ionic compound, CaCO3

a)

calcium carbide

b)

calcium carbon trioxide

c)

calcium carbon oxide

d)

calcium carbonate

10.

Name the ionic compound, FeBr3

a)

Iron (II) bromide

b)

Iron (III) bromide

11.

What is the correct formula of phosphorus trichloride?

a)

P2Cl3

b)

P3Cl3

c)

PCl3

d)

PCl5

12.

What is the correct molecular formula for barium hydroxide?

a)

Ba(OH)2

b)

Ba2OH

c)

BaOH

d)

Ba2OH

13.
Name this compound:
Cs2S
a)
cesium sulfide
b)
cesium sulfate
c)
cesium II sulfate
d)
cesium II sulfide
14.
find the formula zinc sulfate
a)
ZnSO3
b)
ZnSO4
c)
ZnS
d)
Zn(SO4)2
15.
find the formula zinc sulfate
a)
ZnSO3
b)
ZnSO4
c)
ZnS
d)
Zn(SO4)2
16.
SiCl4
a)
silicon tetrachloride
b)
silicon quadchloride
c)
monosilicon tetrachloride
d)
silicon chloride
17.
The chemical formula of carbon tetrachloride is
a)
CCl
b)
C₄Cl
c)
CCl₄
d)
C(IV)Cl
18.
What is the correct chemical formula for Nitrogen Triiodide?
a)
NI3
b)
N3I3
c)
NOI
d)
NeI3
19.
Which of the following is NOT an ionic compound:
a)
CaO
b)
NaOH
c)
BaCl2
d)
Br2
20.
Ca+2, O-2
a)
CaO
b)
OCa
c)
Ca-2O+2
d)
Ca2O2
21.
K+, O-2
a)
KO
b)
K2O
c)
K-2O2
d)
O2K
22.
True or false: When naming ionic compounds, use prefixes to indicate subscripts
a)
True
b)
False
23.

Ionic compounds must have...

a)

a metal and a polyatomic ion

b)

a positive metal and a negatively charged nonmetal

c)

only nonmetals

d)

only metals

24.
Ionic compounds are bonds between
a)
Metals and Metals
b)
Metals and Nonmetals
c)
Nonmetals and Nonmetals
d)
None of the above
25.
MgCl2
a)
Ionic
b)
Covalent
c)
Polyatomic Ion
d)
Metallic 
26.
Which following is a nonmetal?
a)
Se
b)
Mn
c)
Na
d)
Be
27.
Which following is a molecular compound?
a)
SO2
b)
K2O
c)
CaO
d)
BeO
28.

Compounds composed of a ______________ and _____________ like the compound CaCl2 , are ionic compounds.

a)

metal ... metal

b)

nonmetal ... nonmetal

c)

metal ... nonmetal

29.
In general, this type of bond will form a compound with a high melting point.
a)
Ionic
b)
Covalent
30.

Which of the following describes covalent bonds?

a)

Bonds form because of opposite charges

b)

electrons are shared to fill outer electron shells

c)

Electrons are transferred between atoms

d)

Covalent bonds are magical

31.
What elements generally make an ionic bond?
a)
metal and nonmetal
b)
2 or more nonmetals
c)
metal
d)
none of the above
32.

What property is describing an ionic compound?

a)

shares electrons

b)

high melting point

c)

weak bonds

d)

made up of nonmetals.

33.

Name for LiOH

a)

lithium hydrogen oxide

b)

lithium hydroxide

c)

lithium (II) hydroxide

d)

lithium (I) hydroxide

34.

Formula for iron (II) carbonate

a)

FeCO3

b)

Fe2CO3

c)

FeCO2

d)

Fe2CO2

35.
Which of the following is NOT an ionic compound:
a)
CaO
b)
NaOH
c)
BaCl2
d)
Br2
36.
Ionic compounds are bonds between
a)
Metals and Metals
b)
Metals and Nonmetals
c)
Nonmetals and Nonmetals
d)
None of the above
37.

Compounds composed of a ______________ and _____________ like the compound CaCl2 , are ionic compounds.

a)

metal ... metal

b)

nonmetal ... nonmetal

c)

metal ... nonmetal

38.
Prefixes are used only for _______________ compounds
a)
Ionic
b)

molecular

39.

When dissolved in water, the solution is a good conductor of electricity.

a)

ionic compounds

b)

molecular compounds

40.

When dissolved in water, the solution does NOT conduct electricity.

a)

ionic compounds

b)

molecular compounds

41.

What property is describing an ionic compound?

a)

shares electrons

b)

high melting point

c)

weak bonds

d)

made up of nonmetals.

42.

What charge does an atom have when it GAINS electrons?

a)

Positive

b)

Negative

c)

Neutral

43.

What is an ion?

a)

An atom that has gained or lost an electron.

b)

An atom that has gained or lost a neutron.

c)

An atom that has gained or lost a proton.

d)

An atom that is electrically neutral.

44.

How would O2 be qualified. Check all answers that apply.

a)

Atom

b)

Molecule

c)

Compound

45.

How would H2O be classified? Check all that apply.

a)

Atom

b)

Molecule

c)

Compound

46.

What charge does an atom have when it GAINS electrons?

a)

Positive

b)

Negative

c)

Neutral

47.

The sharing of electrons between two or more elements forming a compound.

a)

ionic bond

b)

covalent bond

48.
Which statement best describes an element?
a)
made from mixture 
b)
thousands in the world
c)
pure, made of only one atom
d)
can be separated 
49.
Carbon is considered an element while carbon dioxide is considered a compound. This is because carbon dioxide is –
a)
a gas at room temperature.
b)
made of two different elements.
c)
given off by green plants.
50.
What is the name of a single type of atom?
a)
cell
b)
proton
c)
element
d)
atom
51.
What is the tiniest particle in the entire universe?
a)
cells
b)
gases
c)
atoms
d)
liquids
52.
What is the term for combining 2 or more atoms together?
a)
atoms
b)
elements
c)
molecules
d)
compounds
53.
What is the term for combining 2 or more DIFFERENT atoms together?
a)
atoms
b)
elements
c)
molecules
d)
compounds
54.
Are these molecules also compounds?
a)
YES
b)
NO
55.
Are these molecules also compounds?
a)
YES
b)
NO
56.

An unknown compound is noted to have a low melting point, and is unable to conduct electricity. This compound is most likely

a)

K2O

b)

S2O4

c)

Na3P

d)

LiF

57.

Which ionic compound is incorrectly written?

a)

Li2O

b)

Mg3O2

c)

AgCl

d)

Mg3P2

58.

Which are molecular compounds? Check all that apply.

a)

Carbon decafluoride

b)

Sodium nitride

c)

Phosphorus tetraiodide

d)

Carbon monochloride

59.

Check all which can be true of molecular compounds:

a)

solid at room temperature

b)

conductive

c)

low melting point

d)

liquid at room temperature

e)

gas at room temperature

60.

When writing molecular compounds, it is not necessary to consider __________________

a)

how many atoms

b)

what prefix to use

c)

ionic charge

d)

which element goes first

61.

What is the name of the molecular compound C2F3 ?

a)

carbon fluoride

b)

dicarbon fluoride

c)

dicarbon trifluorine

d)

dicarbon trifluoride

62.
What is the formula for calcium phosphide?
a)
CaP
b)
Ca2P3
c)
Ca3P2
d)
Ca2P
63.
The chemical formula of iron (III)bromide is
a)
FeBr
b)
Fe(III)Br
c)
FeBr₃
d)
Fe₂Br₃
64.
What would be the proper chemical formula for combining Al3+ and Cl- :
a)
AlCl3
b)
Al3Cl
c)
AlCl
d)
Al3Cl3
65.
Name the following ionic compound: BeCl2
a)

beryllium chlorine

b)

beryllium II chloride

c)

beryllium chloride

d)

beryllium dichloride

66.
The name for CrN:
a)
Chromium nitride
b)
Chromium (I) nitride
c)
Chromium (III) nitride
d)
Chromium nitride (III)
67.
Which of the following combinations would need roman numerals in the name?
a)

potassium + fluorine

b)

beryllium + oxygen

c)

boron + iodine

d)

iron + oxygen

68.
What is the correct formula for the compound, lithium oxide?
a)
LiO
b)
Li2O
c)
LiO2
d)
Li2O2
69.

Ionic compounds consist of

a)

two metals

b)

two nonmetals

c)

a metal and a nonmetal

70.

Which of the following are properties of ionic compounds?(check all that apply)

a)

low boiling point

b)

conductive

c)

insulator

d)

always solid at room temperature

e)

high melting point

71.

Which of the following compounds is an example of an ionic compound?

a)

NaCl

b)

CO2

c)

H2O

d)

CH4

72.

What is the correct name for the compound K2O?

a)

potassium oxide

b)

dipotassium monoxide

c)

potassium dioxide

d)

potassium monoxide

73.

Which statement best describes a covalent bond?

a)

Electrons are transferred from one atom to another

b)

Atoms lose protons to form a bond

c)

Electrons are shared between atoms

d)

Atoms are held together by magnetic forces

74.
Atoms combine to form _______. 
a)
electrons
b)
molecules
c)
nuclei
d)
neutrons
75.

What is an ion?

a)

a charged atom

b)

an atom with different neutrons

c)

atoms with no protons

d)

atoms with no electrons

76.
Explain the difference between an atom and a molecule.
a)
One molecule is made of one atom.
b)
One molecule is always made of different particles.
c)
One molecule is made of more than one atom.
d)
One molecule is made of more than two atoms.

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