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Untitled - Kelly Walsh High School

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Chemistry of the Elements 289<br />

6. Which transition metal has the highest electronegativity of all transition<br />

metals?<br />

7. Based upon its position on the periodic table, what are the highest and lowest<br />

oxidation numbers for phosphorus?<br />

8. Write balanced chemical equations for the reaction of each of the following<br />

with water.<br />

a. Na 2O(s) b. CaO(s) c. SO 2(g) d. N 2O 5(s) e. NO(g)<br />

9. In the formation of a complex, which substance serves as a Lewis base?<br />

10. Write the general equation for the formation of a complex.<br />

11. Write the general equation for an equilibrium constant concerning the formation<br />

of a complex.<br />

ANSWER KEY<br />

1. Hydrogen<br />

2. 1<br />

3. 8<br />

4. potassium, rubidium, and cesium<br />

5. Hydrogen, H2 6. Gold, Au<br />

7. 5 and 3<br />

8. a. Na2O(s) H2O(l) l 2 NaOH(aq)<br />

b. CaO(s) H2O(l) l Ca(OH) 2(aq)<br />

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<br />

9. the ligand 10. M x L K [M Lx] 11. Kf [M Lx ]<br />

[M] [L] x

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