Ionic Charges and Oxidation Numbers

This video tutorial explains how to find the oxidation number for mercury in mercury(II) nitrate. It begins by identifying the compound as neutral, meaning the oxidation numbers must sum to zero. The video then discusses the nitrate ion's charge and how it affects the overall oxidation number. By understanding the ionic charge of nitrate, the oxidation number for mercury is determined to be +2. The tutorial concludes with a reference to additional resources for finding oxidation numbers in other ions.

Why do the oxidation numbers in a neutral compound add up to zero?

• Because the compound is covalent

• Because the compound is ionic

• Because the compound has no net charge

• Because the compound is metallic

What is the ionic charge of a nitrate ion?

• 0

• +2

• -1

• +1

What is the oxidation number of mercury in Mercury(II) nitrate?

• +2

• +1

• -1

• 0

How many nitrate ions are bonded to mercury in Mercury(II) nitrate?

• Four

• Three

• Two

• One

What is the total charge contributed by the nitrate ions in Mercury(II) nitrate?

• +1

• 0

• -1

• -2

What is the purpose of the link in the description mentioned in the video?

• To provide a detailed explanation of mercury's properties

• To give a history of mercury compounds

• To offer a tutorial on calculating oxidation numbers for nitrogen in nitrate ions

• To explain the periodic table

What is the significance of the oxidation number in chemical compounds?

• It shows the compound's melting point

• It helps in balancing chemical equations

• It indicates the compound's reactivity

• It determines the color of the compound