Chemical Nomenclature and Formulas

The video tutorial covers transition metals, focusing on their ability to form multiple cations. It explains how to write chemical formulas using the crossover rule and discusses naming conventions using the classical and stock systems. Examples include iron chloride, lead oxide, and copper sulfide, illustrating the application of these rules and systems.

Where are transitional metals located on the periodic table?

• Groups 1 to 18

• Groups 3 to 12

• Groups 1 to 2

• Groups 13 to 18

What is the first step in the five-step crossover rule for writing chemical formulas?

• Simplify the formula

• Cross over the charges

• Write the symbols

• Identify the charges

Which charge is used for iron in the formula FeCl2?

• +4

• +3

• +2

• +1

In the classical system, what suffix is used for the higher charge of a metal?

• ide

• ate

• ic

• ous

What is the Latin name for iron used in the classical system?

• Ferrum

• Cuprum

• Plumbum

• Stannum

How is the charge of a cation with more than one charge indicated in the stock system?

• With a prefix

• With a Roman numeral

• With a suffix

• With a subscript

What is the name of PbO2 using the stock system?

• Plumbous oxide

• Plumbic oxide

• Lead(II) oxide

• Lead(IV) oxide

What is the correct formula for copper(I) sulfide?

• CuS

• Cu2S

• CuSO4

• Cu2SO4

What is the charge of manganese in manganese(IV) oxide?

• +4

• +3

• +5

• +2

What is the formula for plumbic sulfide?

• Pb2S

• PbS

• Pb2S3

• PbS2