Chemistry First Quarter Benchmark Review Question Preview (ID: 32986)
First Quarter Benchmark Review For Chemistry.
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Which is the comparison for the results?
a) control group
b) independent variable
c) dependent variable
d) hypothesis
Which is quantitative?
a) color
b) hardness
c) temperature
d) texture
Which does the experimenter manipulate?
a) independent
b) dependent
c) control
d) results
Which has 4 significant figures?
a) 0.001
b) 4800
c) 3.4210
d) 6.980
What s the value for deci-?
a) one-hundredth
b) one-tenth
c) ten
d) one
How many significant figures are in 450,004,600?
a) 9
b) 7
c) 6
d) 5
How many significant figures are in 0.000302700
a) 6
b) 9
c) 10
d) 3
Which scientist identified the positively charged nucleus?
a) Chadwick
b) Rutherford
c) Bohr
d) Thomson
Which has a charge of 1+?
a) neutron
b) electron
c) proton
d) atom
How many electrons are in an neutral atom of sodium?
a) 11
b) 22
c) 12
d) 23
How many neutrons are in an atom of chlorine?
a) 17
b) 34
c) 18
d) 35
Which element has 14 protons?
a) nitrogen
b) aluminum
c) silicon
d) carbon
Which term describes the amount of mass contained per unit volume?
a) mass
b) length
c) density
d) temperature
Which is the value associated with the prefix nano-?
a) one-billionth
b) one-millionth
c) billion
d) one-thousandth
Which is the correct conversion for a temperature of 54.3°C?
a) 100F
b) 32F
c) 327.3K
d) 218.7K
A nuclear reaction may involve:
a) protons
b) neutrons
c) electrons
d) all of the above
_____ is the splitting of nuclei.
a) fusion
b) fission
c) decay
d) bonding
Alpha particles have a _____ charge.
a) 1+
b) 0
c) 1-
d) 2+
Beta particles have a _____ charge.
a) 1+
b) 0
c) 1-
d) 2+
Gamma rays have a _____ charge.
a) 1+
b) 0
c) 1-
d) 2+
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