Manganese and Sulfide Compounds

The video tutorial explains how to write the chemical formula for manganese(7) sulfide. It begins by identifying the symbols for manganese and sulfur, noting their charges. The tutorial emphasizes the need for the compound to be neutral, with a net charge of zero. It introduces the crisscross method to balance the charges, resulting in the formula Mn2S7. The video concludes with a summary of the process.

What is the symbol for manganese in the periodic table?

• Ma

• Mo

• Mg

• Mn

What charge does manganese have in manganese seven sulfide?

• +7

• +2

• +5

• -2

What is the charge of sulfur in manganese seven sulfide?

• +2

• -7

• -2

• +7

Why must the charges in manganese seven sulfide add up to zero?

• To balance the equation

• To form a stable ion

• To ensure the compound is neutral

• To make it a gas

What is the correct formula for manganese seven sulfide using the crisscross method?

• MnS2

• MnS

• Mn2S7

• Mn7S2