CHEQ 1094 Spring 2016 test 2
Thursday, February 18, 2016
Name: ________________________
Time: 1 hour 50 minutes
Student #: _______________________
This test consists of four pages of questions, a page containing the symbols, names, and masses
of the elements, and a periodic table. Please ensure that you have a complete paper and, if you
do not, obtain one from me immediately. There are 41 marks (and two bonus marks) available.
Good luck!
1) [8 marks] Fill in the blanks with the symbol for a suitable element:
a) A metal that will always form a +1 charge when it makes ionic compounds: ______
b) A group IVA semi-metal: ______
c) An element that occurs naturally as a diatomic liquid: ______
d) A monatomic gas: ______
e) The only liquid metal: ______
f) A transition metal from period 4: ______
g) The element from period 5 and group IIIB: ______
h) A radioactive noble gas: ______
2) [14 marks] Fill in the missing information in the table below:
Compound name
Compound formula
sodium chloride
FeS
calcium nitrate
MnSO4
ammonium iodate
Hg(NO2)2
sodium carbonate hexahydrate
CuSO4·5H2O
aluminum hydroxide
HBr(g)
sulphurous acid
HIO3
dinitrogen monoxide
ClO2
2
3) [8 marks] Fill in the missing information in the table below. For the organic structures, you
may draw either the full structure (e.g.
H
H
H
H
C
C
C
H
H
H
H
) or the shorthand (e.g.
). All
structures in the test were drawn using the shorthand notation.
Compound name
Structure
pentane
2-methylhexane
3,3-diethyl-6-methyloctane
2,2-dibromo-3,3-dichloro-6-methylheptane
I
I
I
I
4) [2 marks] The name 2-chloro-1,1-diethyl-3-propylbutane is not correct. That said, you can
still draw a structure that corresponds to that incorrect name. Draw that structure, and
give the correct name for it.
3
5) [5 marks] Identify the class of compounds to which each of the following belongs. Circle
your choice.
O
O
O
alcohol
ketone
aldehyde
acid
ester
alcohol
ketone
aldehyde
acid
ester
alcohol
ketone
aldehyde
acid
ester
alcohol
ketone
aldehyde
acid
ester
alcohol
ketone
aldehyde
acid
ester
O
HO
O
OH
6) [Bonus – 2 marks] Name the aldehyde in question (4).
7) [4 marks] None of the following chemical reactions is written correctly. Each is incorrect for
its own reason, though. In the space below each reaction, indicate why the reaction is not
correct. You do not need to correct the mistakes you identify.
a) CaCO3

CaO + CO2
b) Na(s) + Br2(l)
c) CaNO3(aq) + NaS(aq)
d) CH3OH(l) + 2O2(g)
NaBr2(s)
CaS(s) + NaNO3(aq)
CO2(g) + 2H2O(l)
4