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Chemistry Review 1 (e-learning #2)

Total questions: 50

Worksheet time: 2hrs 30mins

Name
Class
Date
1.
Select the name of the following acid: HCl
a)
Hydrochloric acid
b)
Chlorous acid
c)
Chloric acid
2.

Select the name of the following acid: HF

a)

Hydrofluoric acid

b)

Fluorous acid

c)

Fluoric acid

3.
Select the name for the following acid: H2SO4
a)
Sulfuric acid
b)
Sulfurous acid
c)
Hydrosulfuric acid
4.
KBr
a)
Soluble
b)
Insoluble
5.
Zinc Hydroxide
a)
Soluble 
b)
Insoluble
6.
Zinc Carbonate
a)
Soluble 
b)
Insoluble 
7.
KOH
a)
Soluble 
b)
Insoluble
8.

Is the following scenario safe or unsafe:


Selena ties her hair back before a lab.

a)

safe

b)

unsafe

9.

Is the following scenario safe or unsafe:


Alana left her purse and backpack on her desk, out of the aisle, while she was in the lab.

a)

safe

b)

unsafe

10.

Is the following scenario safe or unsafe:


Kate accidentally got splashed with chemicals. She stood under the chemical shower until all of the chemicals were washed off.

a)

safe

b)

unsafe

11.

What subatomic particle determines an atom's identity?

a)

proton

b)

neutron

c)

electron

12.

What subatomic particle determines an atom's stability?

a)

proton

b)

neutron

c)

electron

13.

What is located in the nucleus of an atom?

a)

protons

b)

neutrons

c)

electrons

14.

What is located in the electron cloud?

a)

protons

b)

neutrons

c)

electrons

15.

How does an atom become a cation?

a)

gain electrons

b)

lose electrons

c)

gain protons

d)

lose neutrons

16.

How does an atom become an anion?

a)

gain electrons

b)

lose electrons

c)

lose protons

d)

gain neutrons

17.

Where is the majority of an atom's mass located?

a)

nucleus

b)

electron cloud

c)

protons

d)

neutrons

18.

As you move from Left to Right across the Periodic Table, how does zeff influence the atomic radius?

a)

zeff increases and pulls outer energy levels closer, decreasing atomic radius

b)

zeff decreases and pulls outer energy levels closer, decreasing atomic radius

c)

zeff increases and pulls outer energy levels closer, increasing atomic radius

d)

zeff decreases and pulls outer energy levels closer, increasing atomic radius

19.

As you move down the periodic table, how does shielding affect the atomic radius?

a)

Energy levels are added, increasing shielding and atomic radius.

b)

Energy levels are removed, increasing shielding and atomic radius.

c)

Energy levels are added, decreasing shielding and atomic radius.

d)

Energy levels are removed, decreasing shielding and atomic radius.

20.

How many valence electrons does Chromium have?

a)

2

b)

4

c)

14

d)

8

21.

How many valence electrons does Sulfur have?

a)

6

b)

4

c)

10

d)

2

22.

What is the oxidation number of Na?

a)

0

b)

+1/2

c)

+1

d)

-1

23.

What element's don't have oxidation numbers (because they are already stable)?

a)

alkali metals

b)

noble gases

c)

halogens

d)

alkaline earth metals

24.
What is the oxidation number for Flourine (F)?
a)
+1 
b)
-1
c)
17
d)
7
25.
What is the oxidation number for Be? 
a)
+1
b)
+2
c)
+3
d)
+4
26.
What bond is formed between a metal and a nonmetal?
a)
Covalent bond
b)
Ionic bond
27.
Why don't Noble gases ( group 18) normally form chemical bonds?
a)
They have 2 valence electrons
b)
they have full outermost energy levels
c)
they have empty outer levels
d)
they have 8 protons.
28.
Cations are
a)
positive
b)
negative
c)
on the right side of the periodic table.
d)
nonmetals
29.
What is the formula for magnesium chloride?
a)
MgCl
b)
Mg2Cl
c)
MgCl2
d)
Mg(ClO3)2
30.
The chemical formula for an ionic compound of potassium and oxygen is
a)
KO.
b)
K2O.
c)
K2O2.
d)
KO2.
31.
Name this compound: 
NaBr
a)
Bromide sodide
b)
Sodium bromide
c)
Sodium bromate
d)
Sodium bromite
32.
Elements on the LEFT side of the periodic table will most likely form:
a)
Positive ions
b)
Negative ions
c)
Neutral Ions
d)
None of these
33.
Which type of bond has an unequal sharing of electrons?
a)
Polar Covalent 
b)
Non Polar Covalent
c)
Ionic
d)
Metallic
34.
Bonds that form between two metals are called ______________ bonds.
a)
ionic 
b)
covalent
c)
metallic
d)
pervasive
35.
When electrons are shared unequally a/an ___________ bond is formed 
a)
ionic 
b)
hydrogen
c)
polar covalent 
36.

Why do atoms bond?

a)

They typically don't bond

b)

To add or take away energy levels

c)

To have a full valance shell.

d)

To have a full inner shell

37.

What is the correct Lewis Dot Structure for ammonia NH3

a)
b)
c)
d)
38.

CCl4 has how many double bonds?

a)

0

b)

1

c)

2

d)

3

39.
Choose the correct shape for this molecule:
a)
Tetrahedral
b)
Trigonal pyramidal
c)
Bent
d)
Trigonal planar
40.

What is the oxidation number for group 15?

a)

+3

b)

+5

c)

-5

d)

-3

41.

2C5H10 + 10O2 --> 5CO2 + 10H2O

a)

Decomposition

b)

Single Replacement

c)

Combustion

d)

Double Replacement

42.

2Na + CaF2 --> Ca + 2NaF

a)

Decomposition

b)

Single Replacement

c)

Synthesis

d)

Double Replacement

43.

2AgF + CaCl2 --> 2AgCl + CaF2

a)

Decomposition

b)

Single Replacement

c)

Synthesis

d)

Double Replacement

44.

4Fe + 3O2 --> 2Fe2O3

a)

Decomposition

b)

Single Replacement

c)

Synthesis

d)

Double Replacement

45.

Mg3(PO4)2 + 3H2 --> 3Mg + 2H3PO4

a)

Decomposition

b)

Single Replacement

c)

Synthesis

d)

Double Replacement

46.
What symbol is used to indicate a precipitation
a)
(p)
b)
(s)
c)
(g)
d)
(aq)
47.
In this image, what are the information in red is called the_______.
a)
Product
b)
Reactant
c)
Chemical Subscript
48.

2Mg + O2 → 2MgO

a)

Synthesis

b)

Combustion

c)

Decomposition

d)

Metallic

49.
What are the products of this reaction?
Cu+ AgNO3--> 
a)
Cu(NO3)2+Ag
b)
CuNO3 + Ag
c)
CuAg+NO3
d)
Cu+ AgNO3
50.
Predict the products for the this reaction:
AgNO3 + KCl --> 
a)
AgCl + KNO3
b)
AgK + ClNO3
c)
AgNO3 + KCl
d)
KAg + NO3Cl

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