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Pre-AP Chemistry Unit 1 Review Questions
Test Description: Review for Ch.2, 3, and 4 Test
Instructions: Answer all questions to get your test result.
1) This describes a mixture with a uniform composition.
A
heterogeneous
B
None of the above
C
compound
D
homogeneous
2) What state of matter is characterized by having an indefinite shape, but a definite volume?
A
liquid
B
gas
C
none of the above
D
solid
3) A substance that can be separated into two or more substances only by a chemical change is called a(n) ________________.
A
heterogeneous mixture
B
compound
C
none of the above
D
element
4) Which of the following does NOT involve a change in chemical properties?
A
rusting
B
burning
C
fermenting
D
boiling
5) All of the following changes to a metal are physical changes EXCEPT
A
bending
B
rusting
C
melting
D
polishing
6) An example of an extensive property of matter is __________________.
A
mass
B
temperature
C
hardness
D
pressure
7) Which of the following items is NOT a compound?
A
sucrose
B
baking soda
C
salad dressing
D
salt
8) What is the result of multiplying 2.6 x 10^8 by 5.2 x 10^-5
A
1.352 x 10^4
B
13.52 x 10^13
C
13.52 x 10^3
D
1.352 x 10^12
9) What is the result of adding 3.4 x 10^4 and 7.1 x 10^6
A
3.471 x 10^8
B
none of the above
C
1.05 x 10^6
D
7.134 x 10^6
10) The closeness of a measurement to its true value is a measure of its
A
precision
B
accuracy
C
usefulness
D
reproducibility
11) Express the product of 3.8 x 10^-3 m and 7.5 x 10^4 using the correct number of significant figures.
A
2.9 x 10^2
B
none of the above
C
28.5 x 10^1
D
2.85 x 10^2
12) What is the quantity of 865 milligrams expressed in grams?
A
8.65 g
B
86,500 g
C
0.000865 g
D
0.865 g
13) If you are traveling at 48 meters per second, how fast are you traveling in miles per hour?
A
8.3 x 10^-6 miles per hour
B
2.8 x 10^8 miles per hour
C
none of the above
D
107 miles per hour
14) What is the temperature 340 K in degrees Fahrenheit?
A
152.6 degrees Fahrenheit
B
67 degrees Fahrenheit
C
19.4 degrees Fahrenheit
D
none of the above
15) The particles that are found in the nucleus of an atom are ______________.
A
protons and neutrons
B
protons and electrons
C
electrons only
D
neutrons and electrons
16) How many neutrons are in Rubidium-88
A
48
B
51
C
88
D
none of the above
17) Isotopes of the same element have different ______________.
A
atomic numbers
B
number of electrons
C
numbers of protons
D
number of neutrons
18) The sum of the protons and neutrons in an atom equals the ___________________.
A
atomic mass
B
atomic number
C
mass number
D
nucleus number
19) The smallest particle of an element that retains the properties of that element is a(n) ____________________.
A
proton
B
neutron
C
electron
D
atom
20) What is the mass number for a magnesium atom that has 14 neutrons in its nucleus
A
14
B
26
C
none of the above
D
24
*select an answer for all questions
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