Oxidation Numbers in SiO3 Ion

The video tutorial explains how to determine the oxidation number of silicon in the SiO3 ion. It begins by discussing the concept of oxidation numbers in ions, emphasizing that they sum up to the ion's charge. The tutorial then focuses on calculating the oxidation number of silicon, using the known oxidation state of oxygen. By setting up an equation, the oxidation number of silicon is found to be +4. The video concludes by verifying the calculation and summarizing the process.

What is the overall charge of the SiO3 ion?

• 0

• +4

• +2

• -2

Which element in the SiO3 ion has a fixed oxidation number, and what is it?

• Silicon, +4

• Oxygen, -2

• Silicon, -2

• Oxygen, +2

What equation is set up to find the oxidation number of silicon in SiO3?

• x + 3(-2) = -2

• x - 3(2) = -2

• x + 2(-3) = -2

• x - 2(3) = -2

What is the oxidation number of silicon in the SiO3 ion?

• -2

• +4

• -4

• +2

How do you verify the oxidation number of silicon in the SiO3 ion?

• By checking if the sum of oxidation numbers equals +4

• By checking if the sum of oxidation numbers equals 0

• By checking if the sum of oxidation numbers equals -2

• By checking if the sum of oxidation numbers equals +2

What is the sum of the oxidation numbers of all elements in the SiO3 ion?

• 0

• -2

• +4

• +2