Transcript Slide 1

#13 Complete and balance this equation
for a combination reaction:
0
0
2 Be + O2
2
+2 -2
Be1O1
Beryllium metal (has no charge at first)
combines with oxygen gas (no charge)
to form Beryllium Oxide (ionic compound
with charges)
2Be + O2
2BeO
#14 Write and balance the equation for the
formation of magnesium nitride (Mg3N2) from
its elements.
3 Mg
1
3Mg
+
+
N
2
N2
Mg3N2
Mg3N2
#15. Complete and balance this decomposition
reaction:
2 HI
2HI
H
2
+
I
H2
2
+
I2
#16 Write the formula for the binary
(two elements) compound that decomposes
to the products H2 and Br2.
2 HBr
2HBr
H2 +
Br2
H2 +
Br2
#17 Complete the equation for these singlereplacement reactions in aqueous solution.
Balance each equation. Write “no reaction” if a
reaction does not occur. Use the activity series.
a. Fe(s) + Pb(NO3)2 (aq)
+2 -1
Pb(s) + Fe(NO3)2 (aq)
Yes, iron is stronger so it will
replace lead.
#17 Complete the equation for these singlereplacement reactions in aqueous solution.
Balance each equation. Write “no reaction” if a
reaction does not occur. Use the activity series.
b. Cl2(g) + NaI (aq)
Stronger
Cl2 + 2NaI
I2(s) + 2NaCl (aq)
Yes, Chlorine is stronger so it will
Weaker
replace Iodine.
#17 Complete the equation for these singlereplacement reactions in aqueous solution.
Balance each equation. Write “no reaction” if a
reaction does not occur. Use the activity series.
c. Ca(s) + H2O (l)
Stronger
Ca(s)+ 2H2O(l)
H2(g) + Ca(OH)2 (aq)
Yes, Calcium is stronger so it will
Weaker
replace hydrogen.
#18 Write the products of these doublereplacement reactions. Then balance each
equation:
a.
3 NaOH (aq) +
Fe(NO3)3 (aq)
3 NaNO3 (aq) +
Fe(OH)3 (s)
#18 Write the products of these doublereplacement reactions. Then balance each
equation:
b.
3 Ba(NO3)2 (aq) + 2 H3PO4 (aq)
Ba3(PO4)2 (s) +
6 HNO3 (aq)
#19 Write a balanced equation for each
reaction:
a.
3 KOH(aq) +
H3PO4 (aq)
K3PO4 (aq) +
3 H2O (l)
#19 Write a balanced equation for each
reaction:
b.
3 H2SO4(aq) + 2Al(OH)3 (aq)
Al2(SO4)3 (aq) +
6 H2O (l)