ANSWERS TO IB CHEMISTRY SUMMER WORK 2013 ASSIGNMENT
1. 4.2 x 1010
2. 0.000008234
3. .
a) No unit
b) g/cm3
c) g
d) g ∘C
4. .
a) 1.12 m
b) 21.51 L
c) 2180 g
d) 0.010 L
5. 3
6. 4
7. .
a) 11.5 cm
b) 1.6 cm2
8. .
a) 116 lbs
b) 0.67 mi/ min; no the car would not violate the speed limit
9.
10. A= element; C= mixture of elements; E = mixture of elements and compounds
11.
12.
13.
14. .
a)
b)
c)
d)
e)
f)
g)
h)
i)
j)
k)
l)
m)
sodium chloride
potassium sulfide
copper (II) bromide
iron (III) fluoride
magnesium oxide
ammonia
sulfur hexafluoride
rubidium sulfate
silver (I) chlorate
beryllium phosphate
hydrogen nitrate
hydrogen sulfate
hydrogen chloride
a)
b)
c)
d)
e)
f)
g)
NaBr
RaI2
Rb3NO2
MgO
Fr2SO3
AlP
CCl4
15..
h)
i)
j)
k)
l)
m)
n)
N2O5
TbO2
YN
Ti3N2
Au2O
H2S
H3PO4
a)
b)
c)
d)
e)
S- Hydrogen + oxygen → water
SD- Aluminum + copper (II) chloride → copper + aluminum chloride
DD- Lead (II) nitrate + potassium iodide → lead (II) iodide + potassium nitrate
D- Water → hydrogen + oxygen
C- Methane + oxygen → carbon dioxide + water
a)
b)
c)
d)
e)
2H2 (g) + O2 (g) → 2H2O (g)
2Al (s) + 3CuCl2 (aq) → 3Cu (s) + 2AlCl3(aq)
Pb(NO3)2 (aq) +2KI (aq) → PbI2 (s) + 2KNO3(aq)
2H2O (l) → 2H2 (g) + O2 (g)
CH4 (g) + 2O2 (g) → CO2 (g) + 2H2O (l)
16.
17.