CDO AP Chemistry Unit 1
Fundamentals of Chemistry
72. C2H4 reacts with O2 to form CO2 and water
a. Make a particulate drawing which shows that atoms are conserved during this reaction.
b. Use your drawing to explain why all atoms were conserved during this reaction.
c. Use your drawing to explain how the law of conservation of mass applies to this reaction
73. Balance each of the following equations using the smallest whole number coefficients.
a. N2 + O2 N2O
b. H3PO3 + NaOH  Na3PO3 + H2O
c. Na + Al2O3  Na2O + Al
d. Cs + O2  Cs2O2
e. Fe + Cl2  FeCl3
f.
HCl + LiOH  LiCl + H2O
g. N2 + O2  N2O5
h. C5H10 + O2  CO2 + H2O
i.
Mg + N2  Mg3N2
j.
N2 + H2  NH3
k. MgCO3 + HNO3  Mg(NO3)2 + H2O + CO2
l.
H2 + O2  H2O2
m. NaOH + Cl2  NaClO + NaCl + H2O
n. Al(OH)3 + H2SO3  Al2(SO3)3 + H2O
o. LiOH + H2CO3  Li2CO3 + H2O
p. Li + Cl2  LiCl
q. AgNO3 + MgCl2  AgCl + Mg(NO3)2
r.
H3PO4 + Mg(OH)2  Mg3(PO4)2 + H2O
s. P4O10 + H2O  H3PO4
t.
NaOH + HBr  NaBr + H2O