Oxidation Numbers and Compounds

This video tutorial explains how to find the oxidation numbers for each element in MgSO3, magnesium sulfite. It begins by discussing the neutrality of the compound and the general rules for oxidation numbers. The video then identifies the oxidation numbers for magnesium and oxygen, and calculates the oxidation number for sulfur using an equation. The tutorial concludes with a summary of the findings.

What is the overall charge of the compound MgSO3?

• Variable

• Positive

• Neutral

• Negative

Which group in the periodic table does magnesium belong to?

• Group 1

• Group 2

• Group 4

• Group 3

What is the typical oxidation number for oxygen in compounds?

• +2

• -1

• -2

• 0

In the compound MgSO3, what is the unknown variable used to represent sulfur's oxidation number?

• s

• x

• z

• y

How many oxygen atoms are present in MgSO3?

• 1

• 4

• 2

• 3

What is the oxidation number of sulfur in MgSO3 after solving the equation?

• +2

• +4

• -2

• 0

What is the sum of oxidation numbers in a neutral compound?

• Equal to zero

• Equal to the number of atoms

• Equal to the atomic number

• Equal to the mass number