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Practice Test: Empirical Formula & Naming Compounds

Total questions: 58

Worksheet time: 37mins

Name
Class
Date
1.
K20 - name?
a)
potassium dioxide
b)
potassium oxide
c)
potassium oxygen
d)
dipotassium dioxide
2.

CaF2- name?

a)

calcium fluorate

b)

calcium fluoride

c)

fluoride calcite

d)

fluorine calciumate

3.

MgO- name?

a)

oxygen magnesium

b)

magnesium oxide

c)

magnesium oxate

d)

magnesium oxygenate

4.

KH- name?

a)

potassium hydrate

b)

potassium hydrogen

c)

potassium hydride

d)

hydrogen potassiate

5.

Na2SO4- name?

a)

sulfur sulfate

b)

sodium sulfide

c)

sodium sulfate

d)

sodium oxygenate

6.

HCl- name?

a)

hydrogen chloride

b)

chlorine hydrogen

c)

hydrogen chlorine

d)

hydrogen chlorate

7.
What is the correct name of the compound with the formula CaO?
a)
calcium oxide
b)
calcium oxygen
c)
calcium monoxide
d)
monocalcium monoxide
8.

Name for NaH

a)

sodium hydrogen

b)

potassium hydride

c)

sodium hydride

d)

potassium hydrogen

9.

Formula for barium sulfide

a)

B2S3

b)

BaS

c)

Ba2S

d)

BaS2

10.

LiNO3- name?

a)

lithium oxygenate

b)

nitrogen lithate

c)

lithium nitride

d)

lithium nitrate

11.

LiOH- name?

a)

hydrogen lithium

b)

lithium oxyhydride

c)

lithium oxide

d)

lithium hydroxide

12.

HI - name?

a)

iodine hydrogenide

b)

hydrogen iodine

c)

hydrogen iodide

d)

hydrogen iodate

13.

H2SO4

a)

-ide

b)

-ate

14.

H2SO4- name?

a)

hydrogen sulfate

b)

hydrogen sulfide

c)

sulfur hydrogen

d)

sulfide hydrogen

15.

KOH

a)

Carbon oxide

b)

potassium oxide

c)

potassium hydride

d)

potassium hydroxide

16.

The molecular and empirical formula of a compound are __________ the same.

a)

always

b)

sometimes

c)

never

d)

one and

17.
Which of the following is considered an empirical formula?
a)
CH3COOH
b)
C6H12O6
c)
H2O
18.
Which pair has the same empirical formula?
a)
NaCrO4 and Na2Cr2O7
b)
C2H4O2 and C6H12O6
c)
C3H6Oand C2H6O2
d)
CH4 and C2H6
19.
A formula with the lowest whole # ratio of elements in a compound is called
a)
Molecular Formula
b)
Chemical Formula
c)
Empirical Formula 
d)
Distance Formula
20.
What is the empirical formula for C3H8
a)
CH
b)
C3H8
c)
C6H16
d)
CH2.7
21.
Which one is an empirical formula?
a)
H2O2
b)
C2H6O12
c)
CaCl2
d)
N2O8
22.

Br2O6

a)

BrO3

b)

Br6O2

c)

BrO

d)

Br2O6

23.

C2H4

a)

CH

b)

CH2

c)

C4H2

d)

C2H4

24.

Si2F6

a)

SiF

b)

Si2F6

c)

SiF3

d)

Si6F2

25.

What charge does an atom have when it GAINS electrons?

a)

Positive

b)

Negative

c)

Neutral

26.

What subatomic particle changes in an ion?

a)

The number of electrons

b)

The number of protons

c)

The number of neutrons

27.
Sodium has an atomic number of 11, how many protons does this atom have?
a)
22
b)
11
c)
12
d)
2
28.

What is the picture displayed?

a)

atom

b)

element

c)

compound

29.
How many elements are in C6H12O6?
a)
1
b)
2
c)
3
d)
4
30.
How many Hydrogen atoms are in Water (H2O)
a)
1
b)
2
c)
3
d)
4
31.
What term is used for the joining of atoms to form new substances?
a)
valence electrons
b)
physical bonding
c)
energy level
d)
chemical bonding
32.
Which of these items is made up of one or more molecules?
a)
Gold
b)
Hydrogen
c)
Salt 
d)
Neon 
33.

How would H2O be classified? Check all that apply.

a)

Atom

b)

Molecule

c)

Compound

34.

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.

35.

Are these molecules also compounds?

a)

YES

b)

NO

36.

What type of bond is formed between atoms of different charges? (gain or lose electrons)

a)

Covalent

b)

Compound

c)

Ionic

d)

Hydrogen

37.

What is a positive ion called?

a)

anion

b)

cation

c)

isotope

d)

covalent

38.

What is a negative ion called?

a)

anion

b)

cation

c)

covalent

d)

isotope

39.

If an atom gains electrons, the charge will be positive.

a)

true

b)

false

40.

If an atom loses electrons, it becomes a negative ion.

a)

True

b)

False

41.

Cations are...

a)

Positive

b)

Negative

c)

Neutral

42.

An atom becomes _________ when it gains electrons.

a)

Positive

b)

Negative

c)

Neutral

43.

An atom becomes _______ when it loses electrons.

a)

Positive

b)

Negative

c)

Neutral

44.
What is the charge of an atom that has lost one electron?
a)
-1
b)
-2
c)
+1
d)
+2
45.

Name for SrBr2

a)

strontium bromine

b)

strontium bromide

c)

strontium dibromide

d)

strontium dibromine

46.

Name for BaO

a)

Barium oxide

b)

Barium monoxide

c)

Monobarium oxide

d)

Monobarium monoxide

47.

Name the ionic compound, LiCl

a)

lithium chlorine

b)

lithium chloride

c)

lithium chlorate

d)

lithium monochloride

48.

Name the following: C3H8

a)

Tricarbon octahydride

b)

Carbon hydride

c)

Carbon octahydride

d)

Tricarbon hydride

49.
AgF
a)
silver fluoride
b)
silver fluorine
c)
monosilver monofluoride
d)
silver monofluorine
50.

Is the following compound ionic or covalent?

LiBr

a)

Ionic

b)

Covalent

51.

Is the following compound ionic or covalent?

PBr5

a)

Ionic

b)

Covalent

52.

Is the following compound ionic or covalent?

Cl2

a)

Ionic

b)

Covalent

53.

Is the following compound ionic or covalent?

Ag2O

a)

Ionic

b)

Covalent

54.

Is the following compound ionic or covalent?

BaI2

a)

Ionic

b)

Covalent

55.

Is the following compound ionic or covalent?

A material that contains two nonmetals

a)

Ionic

b)

Covalent

56.
Elements combine to form __________.
a)
compounds
b)
atoms
c)
positive ions
d)
negative ions
57.

Which of the following pair of elements is most likely to form an ionic compound?

a)

Magnesium and fluorine

b)

Nitrogen and sulfur

c)

Oxygen and chlorine

d)

Sodium and aluminum

58.
When metals bond with non-metals they form what type of bonds
a)
covalent
b)
ionic
c)
cooperative
d)
lewis