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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
independent variable
B
dependent variable
C
hypothesis
D
control group
2) Which is quantitative?
A
hardness
B
color
C
temperature
D
texture
3) Which does the experimenter manipulate?
A
results
B
independent
C
dependent
D
control
4) Which has 4 significant figures?
A
0.001
B
4800
C
3.4210
D
6.980
5) What s the value for deci-?
A
one
B
one-hundredth
C
one-tenth
D
ten
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
10
B
6
C
3
D
9
8) Which scientist identified the positively charged nucleus?
A
Rutherford
B
Bohr
C
Chadwick
D
Thomson
9) Which has a charge of 1+?
A
neutron
B
atom
C
proton
D
electron
10) How many electrons are in an neutral atom of sodium?
A
23
B
11
C
22
D
12
11) How many neutrons are in an atom of chlorine?
A
17
B
35
C
34
D
18
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
length
B
temperature
C
mass
D
density
14) Which is the value associated with the prefix nano-?
A
one-thousandth
B
one-billionth
C
billion
D
one-millionth
15) Which is the correct conversion for a temperature of 54.3°C?
A
32F
B
327.3K
C
218.7K
D
100F
16) A nuclear reaction may involve:
A
all of the above
B
electrons
C
neutrons
D
protons
17) _____ is the splitting of nuclei.
A
fusion
B
bonding
C
decay
D
fission
18) Alpha particles have a _____ charge.
A
1+
B
1-
C
2+
19) Beta particles have a _____ charge.
A
2+
B
1-
C
1+
20) Gamma rays have a _____ charge.
A
1+
B
1-
C
2+
*select an answer for all questions
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