CHEM 103 TEST 1 QUESTIONS AND
ANSWERS WITH COMPLETE
SOLUTIONS 100% CORRECT RATED
A+
The most numerous of the elements are the
metals.
metalloids.
nonmetals.
noble gases. -ANSWER ✔✔metals
In the periodic table, which elements typically have similar properties?
Those related diagonally
Those in the same columns
Those in the same rows
Those on opposite sides -ANSWER ✔✔same columns
The quantity 0.0000064 g expressed in scientific notation.
6.4 × 10¯6 g
6.4 × 106 g
6.4 × 107 g
6.4 × 10¯7 g -ANSWER ✔✔6.4 x 10^-6g
Which one of these materials is most likely to conduct heat?
A silicon wafer
A chunk of phosphorus
, A sample of chlorine gas
A titanium rod -ANSWER ✔✔a titanium ride
Which corresponds to the composition of the ion typically formed by fluorine?
a. 9 protons, 10 electrons, 1+
b.9 protons, 10 electrons, 1-
c. 9 protons, 8 electrons, 1-
d. 9 protons, 8 electrons, 1+ -ANSWER ✔✔9 protons, 10 electrons, -16
How many protons are in an atom of carbon?
4
6
2
12 -ANSWER ✔✔6
What is the density of a block of material that is 12 cm × 6 cm × 2 cm and has a
mass of 356 g?
1.00 g/cm3
3.56 g/cm3
2.47 g/cm3
4.95 g/cm3 -ANSWER ✔✔2.47 g/cm^3
One common class of minerals are aluminosilicates, with a general formula of
Al 2SiO 5. What is the atomic percentage composition of aluminum in an
aluminosilicate?
62.5 percent Al
12.5 percent Al
33.3 percent Al
ANSWERS WITH COMPLETE
SOLUTIONS 100% CORRECT RATED
A+
The most numerous of the elements are the
metals.
metalloids.
nonmetals.
noble gases. -ANSWER ✔✔metals
In the periodic table, which elements typically have similar properties?
Those related diagonally
Those in the same columns
Those in the same rows
Those on opposite sides -ANSWER ✔✔same columns
The quantity 0.0000064 g expressed in scientific notation.
6.4 × 10¯6 g
6.4 × 106 g
6.4 × 107 g
6.4 × 10¯7 g -ANSWER ✔✔6.4 x 10^-6g
Which one of these materials is most likely to conduct heat?
A silicon wafer
A chunk of phosphorus
, A sample of chlorine gas
A titanium rod -ANSWER ✔✔a titanium ride
Which corresponds to the composition of the ion typically formed by fluorine?
a. 9 protons, 10 electrons, 1+
b.9 protons, 10 electrons, 1-
c. 9 protons, 8 electrons, 1-
d. 9 protons, 8 electrons, 1+ -ANSWER ✔✔9 protons, 10 electrons, -16
How many protons are in an atom of carbon?
4
6
2
12 -ANSWER ✔✔6
What is the density of a block of material that is 12 cm × 6 cm × 2 cm and has a
mass of 356 g?
1.00 g/cm3
3.56 g/cm3
2.47 g/cm3
4.95 g/cm3 -ANSWER ✔✔2.47 g/cm^3
One common class of minerals are aluminosilicates, with a general formula of
Al 2SiO 5. What is the atomic percentage composition of aluminum in an
aluminosilicate?
62.5 percent Al
12.5 percent Al
33.3 percent Al
