Oxidation Numbers in BaCl2

The video tutorial explains how to determine the oxidation numbers for each element in the compound BaCl2. It begins by stating that BaCl2 is a neutral compound, meaning the oxidation numbers must sum to zero. The tutorial identifies barium as having a +2 oxidation number because it is in group 2 of the periodic table, and chlorine as having a -1 oxidation number because it is in group 17. The video concludes by verifying that the sum of the oxidation numbers equals zero, confirming the correctness of the assigned values.

Why must the oxidation numbers in BaCl2 add up to zero?

• Because BaCl2 is an ionic compound.

• Because BaCl2 is a neutral compound.

• Because BaCl2 is a covalent compound.

• Because BaCl2 is a polar compound.

What is the oxidation number of barium in BaCl2?

• +1

• +2

• -1

• 0

Which group in the periodic table does chlorine belong to?

• Group 18

• Group 17

• Group 2

• Group 1

What is the oxidation number of chlorine in BaCl2?

• -1

• 0

• +2

• +1

How do you verify the oxidation numbers in BaCl2?

• By checking if they add up to zero.

• By checking if they add up to +1.

• By checking if they add up to -2.

• By checking if they add up to +2.

What is the sum of the oxidation numbers of all elements in BaCl2?

• +2

• +1

• 0

• -2