Question 1
How many neutrons does a phosphorus-32 atom contain?
a. 15
b. 32
c. 17
d. 47
Question 2
How many protons and electrons does a sulfide ion contain?
a. 16 p, 16 e
b. 16 p, 18 e
c. 18 p, 16 e
d. 18 p, 18 e
Question 3
Ag exists naturally as two isotopes with AWs of 106.9051 &
108.9047 amu. What is the abundance of the lighter?
a. 51.80%
b. 50.90%
c. 49.00%
d. 48.20%
Question 4
Which statement is a postulate of Dalton's atomic theory?
a. Elements can be converted chemically to other elements
b. All atoms of a given element are identical
c. Both postulates are true
d. Neither postulate is true
Question 5
What is the formula of calcium nitride
a. CaN
b. Ca2N3
c. CaN2
d. Ca3N2
Question 6
What is the name of BaSO3?
a. Barium sulfite
b. Barium sulfate
c. Barium sulfur trioxide
d. Barium sulfide
Question 7
What is the name of Fe3(PO4)2?
a. Iron(II) phosphite
b. Iron(II) phosphate
c. Iron(III) phosphite
d. Iron(III) phosphate
Question 8
What is the charge of and how many oxygen atoms are present in a
perbromate ion?
a. –1, 3
b. –2, 2
c. –2, 1
d. –1, 4
Question 9
What is the formula of chromium (VI) oxide?
a. Cr6O
b. CrO6
c. Cr3O
d. CrO3
Question 10
What is the formula of phosphoric acid?
a. H3PO4
b. H2PO3
c. H3PO3
d. H2PO4
Question 11
What is the name of HClO4? _______________________
What is the formula of bromic acid? _________________
What is the name of CBr4? _________________________
Question 12
What is the name of C8H18? _________________
What is the formula of propanol? _________________
What is the formula of sodium hydrogen phosphate? _________________
Question 13
To three sig figs, compare and contrast the mass of:
a. One molecule of CO2 in amu:_________________________
b. One mole of CO2 in g:_________________________
c. One molecule of CO2 in g:_________________________
Question 14
Write and balance the reaction for the combustion of butane:
Write and balance the reaction for the formation of Al2O3 (s) from Al(s) and O2 (g). Classify
the type of reaction (i.e. combination, decomposition, or combustion).