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Chemistry First Quarter Benchmark Review
Test Description: First Quarter Benchmark Review for Chemistry
Instructions: Answer all questions to get your test result.
1) Which is the comparison for the results?
A
dependent variable
B
control group
C
independent variable
D
hypothesis
2) Which is quantitative?
A
temperature
B
hardness
C
texture
D
color
3) Which does the experimenter manipulate?
A
control
B
results
C
dependent
D
independent
4) Which has 4 significant figures?
A
6.980
B
3.4210
C
0.001
D
4800
5) What s the value for deci-?
A
one-tenth
B
one-hundredth
C
ten
D
one
6) How many significant figures are in 450,004,600?
A
6
B
5
C
7
D
9
7) How many significant figures are in 0.000302700
A
6
B
10
C
3
D
9
8) Which scientist identified the positively charged nucleus?
A
Bohr
B
Rutherford
C
Chadwick
D
Thomson
9) Which has a charge of 1+?
A
atom
B
electron
C
proton
D
neutron
10) How many electrons are in an neutral atom of sodium?
A
12
B
23
C
11
D
22
11) How many neutrons are in an atom of chlorine?
A
17
B
34
C
18
D
35
12) Which element has 14 protons?
A
nitrogen
B
carbon
C
aluminum
D
silicon
13) Which term describes the amount of mass contained per unit volume?
A
density
B
mass
C
temperature
D
length
14) Which is the value associated with the prefix nano-?
A
one-millionth
B
one-thousandth
C
one-billionth
D
billion
15) Which is the correct conversion for a temperature of 54.3°C?
A
327.3K
B
218.7K
C
32F
D
100F
16) A nuclear reaction may involve:
A
all of the above
B
electrons
C
protons
D
neutrons
17) _____ is the splitting of nuclei.
A
fusion
B
fission
C
bonding
D
decay
18) Alpha particles have a _____ charge.
A
0
B
1-
C
1+
D
2+
19) Beta particles have a _____ charge.
A
0
B
1-
C
2+
D
1+
20) Gamma rays have a _____ charge.
A
0
B
2+
C
1-
D
1+
*select an answer for all questions
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