Oxidation States and Ionic Compounds

The video tutorial explains how to name ionic compounds by converting chemical formulas into names. It covers the use of oxidation numbers, the importance of balancing charges, and provides examples with elements like copper, titanium, vanadium, and osmium. The tutorial also introduces the crossover method for deriving empirical formulas and emphasizes the need for simplification.

What is the correct name for the compound Cu2O?

• Copper(II) oxide

• Copper dioxide

• Copper(I) oxide

• Copper oxide

In the compound Ti3N4, what is the oxidation state of titanium?

• Titanium(II)

• Titanium(III)

• Titanium(IV)

• Titanium(V)

How many electrons does sulfur need to gain to achieve stability in ionic compounds?

• Four electrons

• Three electrons

• Two electrons

• One electron

What is the charge on each iron ion in iron(III) sulfide?

• 5+

• 4+

• 3+

• 2+

What is the correct formula for vanadium(V) oxide?

• VO5

• VO2

• V2O3

• V2O5

Using the crossover method, what is the formula for copper(II) nitride?

• CuN2

• Cu3N2

• Cu2N3

• CuN

What is the oxidation state of osmium in osmium(VIII) bromide?

• 6+

• 7+

• 8+

• 9+

What is the empirical formula for a compound with the formula Fe2S2?

• FeS2

• Fe2S3

• FeS

• Fe3S2

Which group does bromine belong to in the periodic table?

• Group 8

• Group 7

• Group 6

• Group 5

What is the charge on the nitride ion in ionic compounds?

• 2-

• 3-

• 1-

• 4-