Oxidation Numbers and Their Rules

The video tutorial explains how to determine the oxidation numbers for each atom in the hydrogen sulfite ion (HSO3-). It starts by identifying the oxidation numbers for hydrogen and oxygen using standard rules. Then, it calculates the oxidation number for sulfur by considering the overall charge of the ion. The tutorial concludes with a recap of the process, emphasizing the use of rules and charge balance to find the unknown oxidation number.

What is the main objective of the video?

• To study the properties of metals

• To learn about chemical bonding

• To find oxidation numbers for each atom in HSO3-

• To understand the periodic table

What is the oxidation number of hydrogen when bonded to a non-metal?

• +1

• -1

• 0

• +2

What is the typical oxidation number for oxygen in compounds?

• +1

• +2

• -1

• -2

Why is the oxidation number of sulfur not directly listed?

• Sulfur always has an oxidation number of zero

• Sulfur is not part of the HSO3- ion

• Sulfur's oxidation number varies depending on the compound

• Sulfur is a noble gas

How do the oxidation numbers in an ion relate to the charge of the ion?

• They add up to the charge of the ion

• They add up to zero

• They are always negative

• They are always positive

What is the oxidation number of sulfur in the HSO3- ion?

• -2

• +4

• +6

• 0

What is the total charge of the HSO3- ion?

• +1

• -1

• 0

• +2

Which rule helps in determining the oxidation number of sulfur in the ion?

• The rule that oxidation numbers add up to the ion's charge

• The rule of electronegativity

• The rule of atomic mass

• The rule of octet

What is the oxidation number of oxygen in the HSO3- ion?

• -1

• +2

• +1

• -2