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HC SOL Practice Quiz 2: Get out Periodic Table and Calculator! Flashcards | StudBud
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HC SOL Practice Quiz 2: Get out Periodic Table and Calculator!
HC SOL Practice Quiz 2: Get out Periodic Table and Calculator!
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SOL Chemistry Practice You need your periodic table and calculator.
Flashcards
34 cards
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Practice quiz
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Questions
34
Answers
1
What type of reaction is shown? (Image: Wikipedia)
Oxidation
Combustion
Single Replacement
Synthesis
2
What is the reaction type? (Image: BBC)
combustion
neutralization
decomposition
single replacement
3
What is the correct name for the product shown? (Image: BBC)
copper
oxygen
copper(I) oxide
copper(II) oxide
4
How many total electrons does lithium (Li) contain?
7
1
2
3
5
What type of reaction is: Cl
2
+ 2e- → 2Cl
-
Reduction
Oxidation
6
Which element has the electron configuration 1s
2
2s
2
2p
5
?
O
N
Cl
F
7
Which of these substances could neutralize HCl? (Image: My Safety Sign)
MgBr2
CH3COOH
HNO3
LiOH
8
Which of these elements is NOT in group 2?
Ba
Li
Be
Mg
9
What happens to the volume of a gas if the temperature increases at constant pressure?
The volume remains constant.
The pressure increases.
The volume increases.
The volume decreases.
10
Which method would be the best to separate salt from a salt water mixture?
Chromatography
Filtration
Dissolving
Evaporation
11
How could you separate a mixture of A and B, given the boiling points: A = 34
o
C and B = 65
o
C.
Filtration
Chromatography
Distillation
Use a Magnet
12
The most electronegative elements are __.
Al B C
Li Na K
N O F
Mg Ca Be
13
Adding 7.80 kJ of energy melts what amount of CH
2
Cl
2
at its melting point? ∆H
fus
= 4.60 kJ/mol.
2.6 mol
1.9 mol
0.59 mol
1.7 mol
14
The lab requires
2.5 M HCl
. What does this concentration mean?
There are 2.5 mol HCl in 1.0 L.
There are 2.5 g HCl in 1.0 mL.
There is 1.0 mol HCl in 2.5 L.
There are 2.5 g HCl in 1.0 L.
15
Diatomic elements include ___.
bromine and chlorine
boron and carbon
silver and gold
helium and argon
16
Calculate the molar mass of this substance: Mass = 50.0 g. Amount = 2.0 mol
25 g/mol
100 g/mol
0.05 g/mol
50 g/mol
17
According to the balanced equation, how many water molecules are formed? (Image: Wikipedia)
2
1
0
3
18
What is the correct name for the compound Fe
2
O
3
?
Iron(III) oxide
Iron(II) hydroxide
Iron(II) oxide
Iron(III) hydroxide
19
What is the correct formula for sodium sulfate?
NaSO4
N2S4
Na2SO4
NSO4
20
How many core electrons are present in the image?
4
3
2
1
21
If a catalyst is added to this reaction, the activation energy will ___.
decrease
increase then decrease
remain the same
increase
22
What is the name of NH
4
NO
3
?
Nitrate
Ammonium nitrate
No No No
Ammonium nitride
23
Which mole ratio is correct based on this chemical equation? (Image: BBC)
1 mol Cu : 2 mol CuO
1 mol O2 : 1 mol CuO
1 mol Cu : 1 mol O2
1 mol Cu : 1 mol CuO
24
What is the percent error? Actual mass = 20.0 g. Measured mass = 18.0 g.
10%
2%
5%
1%
25
A gas has a molar mass of 44.0 g/mol. What is its volume at STP?
44.0 L
22.4 L
1 L
There is not enough information.
26
A gas has a molar mass of 44.0 g/mol. What is its density. Assume STP.
There is not enough information.
1.96 g/L
1.00 g/L
22.4 g/L
27
What is the correct name for this molecule?
Dinitrogen hydrate
Nitrate
Dinitrate
Dinitrogen tetroxide
28
Which of these is a chemical property?
It is magnetic.
It reacts with water.
The melting point is 5 oC.
The hydrate is blue.
29
From the choices, which gas is the most dense?
helium
carbon dioxide
oxygen
30
Which of the following statements about aluminum is correct? (Image: Chemwiki)
Al has 3 electrons in the d orbitals.
Al has 7 total electrons in the p orbitals.
Al has 2 total electrons in the s orbitals.
Al has 4 electrons in energy level 3.
31
How many moles are present in 35 mL of a 0.50 M solution?
70 mol
17.5 mol
0.014 mol
0.0175 mol
32
Which of these elements is NOT in the d-block?
Cu
Ni
Tc
Cl
33
What is the oxidation number of iron in Fe
2
O
3
?
+1
+3
0
+2
34
A piece of copper contains 3.56 x 10
22
atoms? How many moles is this? (Image: Wikipedia)
0.059 mol
5.0 mol
10.0 mol
0.90 mol
