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WorksheetsMidterm Review #1
Total questions: 20
Worksheet time: 10mins
Name
Class
Date
1.
What is the charge of the strontium ion?
a)
+1
b)
+2
c)
+3
d)
+4
2.
Under what conditions can KBr conduct electricity?
a)
only in crystal form
b)
only when melted
c)
only when melted or dissovled
d)
only when dissolved
3.
Which of the following represents a compound?
a)
H2O
b)
H-3
c)
H
d)
O-16
4.
As you move from left to right across the periodic table
a)
atomic mass decreases
b)
atomic radii increases
c)
electronegativity decrease
d)
ionization energy increases
5.
Metals lose their electron and become
a)
larger and positively charged
b)
Larger and negatively charged
c)
smaller and positively charged
d)
smaller and negatively charged
6.
How many valence electrons does Iodine have?
a)
1
b)
3
c)
5
d)
7
7.
2H29(g) + O2(g) = 2H2O(g) which way will it shift if the pressure is increased
a)
makes more hydrogen
b)
makes more oxygen
c)
no affect
d)
makes more water
8.
What is the formula for aluminum oxide?
a)
Al3O
b)
AlO3
c)
Al2O3
d)
AlO
9.
What is the next atomic orbital 1s, 2s, 2p, 3s, 3p
a)
3d
b)
2d
c)
4s
d)
3f
10.
What change in the atomic number is seen in gamma radiation?
a)
remains the same
b)
decreases by 2
c)
increases by 1
d)
decreases by 1
11.
Which state of matter has a definite shape and definite volume?
a)
liquid
b)
solid
c)
gases
d)
plasma
12.
What particle is emitted in alpha radiation?
a)
electron
b)
Hydrogen nucleus
c)
Helium nucleus
d)
photon
13.
Express 239 K in Celsius.
a)
93
b)
-34
c)
34
d)
-61
14.
What is the volume of 45.6 g if its density is 10.5 g/mL?
a)
4.34
b)
479
c)
.23
d)
1.50
15.
Which of the following is a heterogeneous mixture?
a)
salt water
b)
soil
c)
air
d)
steel
16.
Which of the IMF is the weakest?
a)
dispersion
b)
dipole-dipole
c)
hydrogen bond
d)
single bond
17.
Which of the following is an anion?
a)
Ca+2
b)
sulfate
c)
Hg+1
d)
Fe+3
18.
What is the correct name for N2O5?
a)
nitrous oxide
b)
dinitrogen pentoxide
c)
nitrogen dioxide
d)
nitrate oxide
19.
What is the basis of metallic bonding?
a)
mobile electrons
b)
charged ion
c)
sharing electrons
d)
protons and electron attraction
20.
How many atoms are in 5.0 moles of alcohol?
a)
5
b)
35
c)
3.01 x 1024
d)
2.11 x 1025
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