Zinc Nitrate and Nitrate Ions

This video tutorial explains how to determine the oxidation numbers for each element in zinc nitrate (Zn(NO3)2). It covers the rules for oxidation numbers in neutral compounds and ions, emphasizing that the sum of oxidation numbers in a neutral compound is zero, while in an ion, it equals the ion's charge. The video details the nitrate ion's oxidation numbers, noting its -1 charge, and explains that with two nitrate ions, zinc must have a +2 oxidation number to balance the compound. The tutorial concludes with a reference to additional resources for learning about oxidation numbers in nitrate ions.

What is the chemical formula for zinc nitrate?

• Zn(NO3)2

• ZnN2O6

• ZnO2

• Zn(NO2)3

In a neutral compound, what do the oxidation numbers add up to?

• The mass number

• The atomic number

• Zero

• The charge of the ion

What is the ionic charge of the nitrate ion?

• +2

• -2

• -1

• +1

How many nitrate ions are present in zinc nitrate?

• Three

• Two

• One

• Four

What is the oxidation number of zinc in zinc nitrate?

• +2

• -2

• 0

• +1

If each nitrate ion has a charge of -1, what is the total charge contributed by two nitrate ions?

• -1

• +2

• -2

• 0

Where can you find more information about the oxidation numbers for each element in the nitrate ion?

• In the periodic table

• In a chemistry textbook

• In a referenced video card

• In the appendix of the video