Oxidation Numbers and Ion Charges

This video tutorial explains how to determine the oxidation numbers for each element in ammonium chlorate (NH4Cl3). It begins by introducing the concept of oxidation numbers and the neutrality of the compound. The video then breaks down the compound into ammonium and chlorate ions, explaining how to calculate the oxidation numbers for each ion. For the ammonium ion, the oxidation number of nitrogen is determined, while for the chlorate ion, the oxidation number of chlorine is calculated. The video concludes with a recap of the oxidation numbers for each element in NH4Cl3.

What is the overall charge of ammonium chlorate (NH4ClO3)?

• Depends on the environment

• Neutral

• Negative

• Positive

What is the charge of the ammonium ion (NH4+)?

• 0

• -1

• +1

• +2

Which element in the ammonium ion has an unknown oxidation number initially?

• Nitrogen

• Oxygen

• Chlorine

• Hydrogen

What is the charge of the chlorate ion (ClO3-)?

• 0

• -1

• +2

• +1

What is the oxidation number of nitrogen in the ammonium ion?

• +3

• 0

• -3

• +1

What is the oxidation number of hydrogen in the ammonium ion?

• -1

• 0

• +2

• +1

What is the typical oxidation number of oxygen in compounds?

• +2

• -1

• -2

• 0

What is the oxidation number of chlorine in the chlorate ion?

• 0

• -1

• +5

• +3

How many oxygen atoms are present in the chlorate ion?

• 1

• 2

• 4

• 3

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

• 0

• +1

• -1

• +2