Untitled - Kelly Walsh High School

Chemistry of the Elements 289
6. Which transition metal has the highest electronegativity of all transition
metals?
7. Based upon its position on the periodic table, what are the highest and lowest
oxidation numbers for phosphorus?
8. Write balanced chemical equations for the reaction of each of the following
with water.
a. Na 2O(s) b. CaO(s) c. SO 2(g) d. N 2O 5(s) e. NO(g)
9. In the formation of a complex, which substance serves as a Lewis base?
10. Write the general equation for the formation of a complex.
11. Write the general equation for an equilibrium constant concerning the formation
of a complex.
ANSWER KEY
1. Hydrogen
2. 1
3. 8
4. potassium, rubidium, and cesium
5. Hydrogen, H2 6. Gold, Au
7. 5 and 3
8. a. Na2O(s) H2O(l) l 2 NaOH(aq)
b. CaO(s) H2O(l) l Ca(OH) 2(aq)
c. SO2(g) H2O(l) l H2SO3(aq) d. N2O5(s) H2O(l) l 2 HNO3(aq) e. NO(g) H2O(l) l No Reaction
9. the ligand 10. M x L K [M Lx] 11. Kf [M Lx ]
[M] [L] x