WorksheetsChemistry CQA2 Review
Total questions: 29
Worksheet time: 30mins
Name
Class
Date
1.
What is the name for N2O3?
a)
Nitrogen oxide
b)
Dinitrogen oxide
c)
Dinitrogen trioxide
d)
Nitrogen trioxide
2.
What is the name of H2CO3?
a)
hydrocarbonic acid
b)
percarbonous acid
c)
carbonic acid
d)
acetic acid
3.
What is the correct formula for the compound, lithium oxide?
a)
LiO
b)
Li2O
c)
LiO2
d)
Li2O2
4.
What is the name of the compound HI?
a)
iodic acid
b)
hydroiodic acid
c)
iodous acid
d)
hypoiodous acid
5.
Which of the following is the correct Lewis structure for the compound PBr3?
a)
structure A
b)
structure B
c)
structure C
d)
structure D
6.
Which of the following is NOT a property of ionic compounds?
a)
Have high melting points
b)
Can conduct electricity
c)
Generally liquids at room temperature
d)
Made up of a metal and nonmetal
7.
What is the formula for ammonium sulfate?
a)
NH4SO4
b)
(NH4)2SO4
c)
NH4S
d)
(NH4)2S
8.
Choose the correct shape for this molecule:
a)
Tetrahedral
b)
Trigonal pyramidal
c)
Bent
d)
Trigonal planar
9.
What do Roman Numerals represent in the name of a transition metal compound?
a)
how many atoms of the metal there are
b)
the charge of the nonmetal
c)
the charge of the metal
d)
the mass number
10.
Covalent bond is formed between ________
a)
A. metals and metals
b)
B. non-metals and non-metals
c)
C. metals and non-metrals
d)
D. metaliods and non-metals
11.
What do all acids have in common?
a)
all acids contain oxygen.
b)
all acids start with hydrogen.
c)
all acids start with oxygen.
d)
all acids contain a noble gas.
12.
Which of the following elements will form a cation?
a)
Chlorine (Cl)
b)
Nitrogen (N)
c)
Potassium (K)
d)
Sulfur (S)
13.
What is the chemical formula of carbonic acid?
a)
H2CO3
b)
H2CrO4
c)
H2C2O4
d)
HCO3
14.
What is the chemical name for the ionic compound listed:
Cu3N2
Cu3N2
a)
copper nitride
b)
copper (II) nitride
c)
copper (III) nitride
d)
Tricopper dinitride
15.
Which of the following compounds is a covalent bond?
a)
CO2
b)
CaCl2
c)
Na3P
d)
Mg(OH)2
16.
Balance this equation.
_CF4 + _Br2 -- _CBr4 + _F2
_CF4 + _Br2 -- _CBr4 + _F2
a)
2,1,2,1
b)
1,2,2,1
c)
1,2,1,2
d)
2,2,2,2
17.
What type of chemical reaction is the equation below?
2Fe + 6NaBr → 2FeBr3 + 6Na
2Fe + 6NaBr → 2FeBr3 + 6Na
a)
single replacement
b)
double replacement
c)
synthesis
d)
decomposition
18.
Which of the following symbols is not a correct indication of the phase of a substance in a reaction?
a)
(s)=solid
b)
(g)=grams
c)
(l)=liquid
d)
(aq)= aqueous
19.
Identify the type of reaction:
Ca + O --> CaO
Ca + O --> CaO
a)
Decomposition
b)
Synthesis
c)
Double Replacement
d)
Combustion
20.
Combustion reactions take with which element as a reactant in order to produce water and carbon dioxide?
a)
oxygen
b)
carbon
c)
nitrogen
d)
hydrogen
21.
Balance this equation-
__P4 + __O2 --> __P2O3
__P4 + __O2 --> __P2O3
a)
it is already balanced
b)
2, 1, 3
c)
1, 2, 3
d)
1, 3, 2
22.
The law of conservation of mass states that....
a)
Matter can be made
b)
Matter can be destroyed
c)
Matter can neither be made or destroyed
23.
What is the right part of a chemical equation called?
H2 + O → H2O
H2 + O → H2O
a)
Reactants
b)
Products
c)
Yields
d)
Chemical Equation
24.
You know you a chemical reaction has occurred if
a)
there is a precipitate.
b)
there is a color change.
c)
there is a temperature change.
d)
All of these answers are evidence.
25.
Which element is not diatomic?
a)
Br
b)
He
c)
H
d)
O
26.
When balancing equations what does the arrow symbol ("→") stand for?
a)
subscript
b)
equals
c)
it is just an arrow
d)
yield
27.
The following graphic shows an example of which reaction type?
a)
Acid-Base
b)
Single Replacement
c)
Decomposition
d)
Synthesis
28.
This appears on the left side of a chemical formula, and represents how many molecules there are.
a)
An Atom
b)
The Subscript
c)
A Molecule
d)
The Coefficient
29.
What are the reactants in the following chemical equation?
2H2 + O2 --> 2H2O
2H2 + O2 --> 2H2O
a)
H2
b)
O2
c)
2H2 + O2
d)
2H2O
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