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WorksheetsChemistry Midterm Review
Total questions: 45
Worksheet time: 48mins
Name
Class
Date
1.
What are 3 examples of metals:
a)
Lithium
Sodium
Calcium
b)
Nitrogen
Oxygen
Fluorine
c)
Helium
Neon
Argon
2.
What is the correct Lewis dot structure for Selenium:
a)
b)
c)
3.
What is the correct name for Cu(NO3)2?
a)
Copper (II) Nitrate
b)
Copper Nitrate
c)
Copper (III) Nitrate
4.
A substance that is tightly packed together is most likely in what state of matter?
a)
solid
b)
liquid
c)
gas
5.
What is the name of CuCl3?
a)
Copper (III) Chloride
b)
Copper (II) Chloride
c)
Copper Chloride
6.
A change that alters the physical properties of a substance without changing its composition.
a)
Physical Change
b)
Chemical Change
7.
Water freezing into ice is an example of a...
a)
Physical Change
b)
Chemical Change
8.
Any change in the state of matter of a substance is a...
a)
Physical Change
b)
Chemical Change
9.
Which of the following indicates a PHYSICAL change?
a)
Change in temperature
b)
Change in shape
c)
Formation of a precipitate
d)
Change in color
10.
Physical or Chemical Change? Iron rusts
a)
Physical Change
b)
Chemical Change
11.
Physical or Chemical Change? Sodium metal burning in water.
a)
Physical Change
b)
Chemical Change
12.
How many sig. fig. are in the number below:
350.540
350.540
a)
4
b)
5
c)
6
d)
7
13.
How many sig. fig. are in the number below:
0.0005
0.0005
a)
1
b)
2
c)
3
d)
4
14.
Which measurement contains 3 sig figs?
a)
200 mL
b)
20.0 mL
c)
0.02 mL
d)
0.020mL
15.
Round 1047.78 to three sig figs
a)
104
b)
105
c)
1050
d)
1050.00
16.
How many Significant Figures in the number below?
4.56 x 103
4.56 x 103
a)
5
b)
4
c)
6
d)
3
17.
Describe the accuracy and precision of the image
a)
Accurate and Precise
b)
Accurate and not precise
c)
Not Accurate and Precise
d)
not accurate and not precise
18.
Describe the accuracy and precision of the image
a)
Accurate and Precise
b)
Accurate and not precise
c)
Not Accurate and Precise
d)
not accurate and not precise
19.
Solve. Round using SigFig math rules.
12.5-mL + 20.05-mL + 2.69-mL
12.5-mL + 20.05-mL + 2.69-mL
a)
35-mL
b)
35.2-mL
c)
35.24-mL
d)
35.240-mL
20.
Solve. Round using SigFig math rules.
12.5-mL + 20.05-mL + 2.69-mL
12.5-mL + 20.05-mL + 2.69-mL
a)
35-mL
b)
35.2-mL
c)
35.24-mL
d)
35.240-mL
21.
Solve. Round using SigFig math rules.
98.7°C - 97.25°C
98.7°C - 97.25°C
a)
1°C
b)
1.4°C
c)
1.45°C
d)
1.450°C
22.
Find the sum 3.35 + 1.4 + 3.65
a)
8.9
b)
8.22
c)
8.43
d)
8.4
23.
What is the volume of Object X?
a)
10.0 cm3
b)
15.0 cm3
c)
20.0 cm3
d)
25.0 cm3
24.
What is the volume of 150 grams of lead if it has a density of 11.3 g/cm3? (All calculations should have the correct sig figs)
a)
13.3 g
b)
13 cm3
c)
1695 g
d)
1700 cm3
25.
What is the density of a rock if its mass is 36g and its volume is 12.0 cm3? (All calculations should have the correct sig figs)
a)
432 g/cm3
b)
0.33 g/cm3
c)
48 g/cm3
d)
3.0 g/cm3
26.
What do we know about the density of lamp oil, rubbing alcohol, and vegetable oil?
a)
The density is greater than 1.0 g/mL
b)
The density is less than 1.0 g/mL
c)
The density is equal to 1.0 g/mL
d)
The density can not be determined
27.
You know 1000 mg = 1 g. Convert 2.5 grams into milligrams.
a)
25 mg
b)
25,000 mg
c)
250 mg
d)
2500 mg
28.
You know that 12 inches = 1 foot. Convert 60 inches to feet.
a)
720 feet
b)
5 feet
c)
5 inches
d)
72 feet
29.
The length of a desk is 3.5 feet. How many centimeters is the length?
(there are 2.54 cm in an inch)
(there are 2.54 cm in an inch)
a)
60
b)
120.23
c)
106.68
d)
117.12
30.
How many minutes are in a year?
a)
I can't count that high.
b)
525,600min
c)
52,560min
d)
31,536,000min
31.
What is this element...Au
a)
Iron
b)
Titanium
c)
Gold
d)
Flourine
32.
Element:Fe
a)
Gold
b)
Flourine
c)
Phosphorus
d)
Iron
33.
If I gain electrons I become
a)
Positive because I've added to my atom
b)
negative because I've added electrons
c)
same because i'm balanced
d)
equal because now I have electrons
34.
When metals bond with non-metals they form what type of bonds
a)
covalent
b)
ionic
c)
cooperative
d)
lewis
35.
How do the following two elements bond together?
Na1+ F1-
Na1+ F1-
a)
NaF
b)
NaF3
c)
Na3F
d)
Na1F2
36.
How do the following two elements bond together?
Cr3+ O2-
Cr3+ O2-
a)
CrO
b)
Cr3O2
c)
Cr2O3
d)
CrO3
37.
AgF
a)
silver fluoride
b)
silver fluorine
c)
monosilver monofluoride
d)
silver monofluorine
38.
phosphorus trichloride
a)
KCl3
b)
PCl3
c)
K3Cl
d)
P3Cl
39.
silicon dioxide
a)
SO2
b)
NaO2
c)
SiO2
d)
SiO
40.
diphosphorus pentoxide
a)
P2O5
b)
PO5
c)
P5O2
d)
P2O6
41.
A mixture that appears to be evenly mixed throughout:
a)
an atom
b)
a compound
c)
a homogeneous mixture
d)
a heterogeneous mixture
42.
A pure substance...
a)
is an element or a compound
b)
is an element or a mixture
c)
is a compound or a mixture
d)
is a mixture
43.
1 A substance made up of two or more chemically combinedelements is —
a)
an element
b)
mixture
c)
compound
d)
solution
44.
Two or more physically combined substances form —
a)
a compoud
b)
an acid
c)
an element
d)
a mixture
45.
What is an example of an element?
a)
Oxygen
b)
Pure water
c)
Air
d)
Table salt
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