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Chemistry Pt. II TAPREP Final

Total questions: 65

Worksheet time: 2hrs 36mins

Name
Class
Date
1.

You can't live without water! What is its chemical formula?

a)

H2

b)

O2

c)

H2O

d)

H2O2

2.

Which among the following is not a noble gas?

a)

Helium

b)

Hydrogen

c)

Bromine

d)

Radon

3.

When is an ionic bond formed?

a)

when electrons are shared

b)

when protons are shared

c)

when ions of opposite electrical charges attract each other

d)

when a positive hydrogen attracts a negative atom in another molecule

4.

Which two subatomic particles are found in the nucleus of an atom?

a)

Neutrons and Protons

b)

Shells and Electrons

c)

Electrons and Protons

d)

Electrons and Neutrons

5.

An atom becomes a positive ion when it

a)

gains electrons

b)

gains protons

c)

loses electrons

d)

loses electrons or gains protons

6.

When an atom gains a valence electron, it becomes a(n) _____________ ion.

a)

positive

b)

negative

c)

neutral

7.
Where are metals located on the periodic table?
a)
Blue
b)
Green
c)
Red
8.

What are AMU's

a)

Atomic Mass University

b)

Atomic Mass Units

c)

Atoms mean unity

d)

All Mass United

9.

What does the atomic number represent?

a)

The number of electrons

b)

The number of protons

c)

The number of neutrons

d)

The number of protons and neutrons together.

10.

What does the mass number represent?

a)

The number of electrons

b)

The number of protons

c)

The number of neutrons

d)

The number of protons and neutrons together.

11.

How many neutrons does an atom of symbol pictured have?

a)

26

b)

-26

c)

70

12.

Which has more protons?

a)

neither

b)

carbon - 12

c)

carbon - 13

13.

Which has more electrons?

a)

neither

b)

carbon - 12

c)

carbon - 13

14.

Which has more neutrons?

a)

neither

b)

carbon - 12

c)

carbon - 13

15.

What does these all have in common?

a)

Ionic compounds

b)

Covalent Compounds

c)

Molecules

d)

Polyatomic Ions

16.

Which pair of atoms will form a covalent molecule?

a)

One atom of copper and two atoms of fluorine

b)

One atom of sodium and one atom of fluorine

c)

One atom of oxygen and one atom of iron

d)

One atom of oxygen and two atoms of hydrogen

17.

Dinitrogen Pentafluoride is represented by which formula?

a)

NF3NF_3  

b)

N2F5N_2F_5  

c)

N5F2N_5F_2  

d)

NF5NF_5  

18.

Match the following

a)

Lasso an cross

1.

making and balancing ionic molecules

b)

Prefix

2.

making covalent molecules

c)

M1P1 + M2P2....

3.

finding Average Mass

d)

electrostatic attraction

4.

ionic bonds

e)

sharing electrons

5.

covalent bonds

19.

Match the prefix to the correct amount.

a)

deca

1.

10

b)

nona

2.

9

c)

octa

3.

8

d)

hepta

4.

7

e)

hexa

5.

6

20.

Predict the bond that will form between Sr and S.

a)

Ionic

b)

Covalent

21.
Predict the bond that will form between Be and F.
a)
Ionic
b)
Covalent
22.

The octet rules states that most elements want to have _____ valence electrons.

a)

2

b)

4

c)

6

d)

8

23.
What is the name for an ion with a negative charge?
a)
cation
b)
anion
c)
onion
d)
union
24.
What is the name for an ion with a positive charge?
a)
cation
b)
anion
c)
onion
d)
union
25.
Ionic bonds are between...
a)
nonmetals and nonmetals
b)
carbon and oxygen
c)
metals and nonmentals
d)
hydrogen and chlorine
26.
What is a valence electron?
a)
The sum of neutrons and protons.
b)
The # of electrons in the last shell.
c)
A type of bond.
d)
A popular compound.
27.

What is the name of the following ternary ionic compound:

Ba(OH)2 ?

a)

Barium Hydroxide

b)

Boron Hydroxide

c)

Beryllium Hydroxide

28.
What is the charge on the hydroxide ion?
a)
0
b)
-1
c)
-2
d)
-3
29.
KCl
a)
Krypton Chloride
b)
Potassium Chlorine
c)
Potassium Chloride
d)
Potassium Monochloride
30.
Name this compound: 
BaBr2
a)
Bromide Baride
b)
Barium bromide
c)
Barium bromate
d)
Boron bromite
31.

What is the name of the following ternary ionic compound:

AgCN?

a)

Silver Cyanide

b)

Silver Carbon Nitride

c)

Silver Carbonoxide

32.
How many atoms are in the formula NH4NO3?
a)
9
b)
8
c)
7
d)
4
33.
When naming an ionic compound with a ______ metal needs a Roman Numeral after its name.
a)
Alkali
b)
Alkaline-Earth
c)
Transition 
d)
Metalloid
34.
If I am in group 17 how many valence electrons do I have?
a)
17
b)
1
c)
7
d)
none, I am a noble gase
35.
Name the following ionic compound: MgSO4
a)
magnesium sulfoxide
b)
magnesium sulfide
c)
magnesium sulfate
d)
magnesium oxide
36.

What is the correct name for Al(NO3)3

a)

Aluminum Nitrite

b)

Aluminum Nitrate

c)

Silver Nitrate

d)

Aluminum Nitorus

37.

Valence electrons are shared

a)

Ionic bonds

b)

Covalent bonds

38.

What type of bonding does this picture show?

a)

Ionic

b)

Covalent

39.
What two types of atoms make a covalent bond?
a)
2 Nonmetals
b)
1 Nonmetal and 1 Metal
c)
2 Metals
d)
2 Noble Gases
40.
Which of the following is NOT formed by a covalent bond?
a)
K2S
b)
H2O
c)
I2
d)
CO2
41.

Which is the correct molecular structure for carbon dioxide?

a)
b)
c)
d)
42.
Which of the following is the correct Lewis structure for water?
a)
A
b)
B
c)
C
43.
What is the correct formula for this molecule?
a)
Si4F
b)
SiF4
c)
SiF
d)
Si4F4
44.

NH3 has how many lone pairs?

a)

0

b)

1

c)

2

d)

3

45.
This is a correct dot diagram for fluorine (F)
a)
true
b)
false
46.
This is the correct dot diagram for nitrogen, group 15.
a)

true

b)

false

47.

Type of covalent bond in which the electrons are being shared equally.

a)

Nonpolar bond

b)

Reactant

c)

Coefficient

48.

Covalent is a bond formed by the sharing of electrons. Occurs between two nonmetals.

a)

True

b)

False

49.

When two nonmetals do not share electrons evenly, the resulting covalent bond will be

a)

nonpolar

b)

polar

c)

ionic

d)

metallic

50.

The approximate amount of metals in the periodic table is ___

a)

100

b)

97

c)

83

d)

88

51.

What two types of atoms make a covalent bond?

a)

2 non-metals

b)

1 metal and 1 non-metal

c)

2 metals

52.
silicon dioxide
a)
SO2
b)
NaO2
c)
SiO2
d)
SiO
53.

dinitrogen pentoxide

a)

N2O5

b)

NO5

c)

N5O2

d)

N2O6

54.

tetraphosphorus heptoxide

a)

K₄O₁₀

b)

P₄O7

c)

KO

d)

P₁₀O₄

55.

Identify the following compound as ionic or covalent: SO2

a)

ionic

b)

covalent

56.

Match the following Polyatomic molecules

a)
1.

Phosphate

b)
2.

Carbonate

c)
3.

Hydroxide

d)
4.

Sulfate

e)
5.

Nitrate

57.
24.1% of all the isotopes of a an element have a mass of 75.23 amu, 48.7% have a mass of 74.61 amu, and 27.2% have a mass of 75.20 amu.
What is the average mass of this element?
a)
74.92 amu
b)
24.97 amu
c)
75.01 amu
d)
74.51 amu
58.

24.1% of all the isotopes of a an element have a mass of 75.23 amu, 48.7% have a mass of 74.61 amu, and 27.2% have a mass of 75.20 amu. This element is most likely ___

a)

Tungsten {W}

b)

Yttrium {Y}

c)

Rubidium {Rb}

d)

Tellurium {Te}

59.

Isotopes of an element have a different number of...

a)

Protons

b)

Neutrons

c)

Electrons

d)

Mass

60.
What is the name of the atom pictured here?
a)
Nitrogen
b)
Nitrogen-15
c)
Nitrogen-7
d)
Nitrogen-8
61.

What is the weighted average of the masses of all naturally occurring isotopes of an element called?

a)

isotope

b)

ion

c)

average atomic mass

d)

radioactive

62.
Avogadro's number of representative particles is equal to one_____.
a)
kilogram
b)
gram
c)
kelvin
d)
mole
63.

Avagadros number is

a)

6.09x10*22

b)

6.02x10*22

c)

6.02x10*23

d)

6.06x10*23

64.

Match the following

a)

Different amount of neutrons

1.

Isotopes

b)

Different amount of protons

2.

Atomic number

c)

Different amount of electrons

3.

Reactivity

d)

Chemical Bonds

4.

Valance electrons

e)

Charges

5.

Ions

65.

Match the following

a)
1.

Covalent Bond

b)
2.

Ionic Bond

c)
3.

Polyatomic [easy]

d)
4.

Opposites attract

e)
5.

Stable

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