Iron(III) Carbonate and Carbonate Ion Concepts

The video tutorial explains how to write the formula for iron(III) carbonate. It begins by identifying the element symbol for iron and its ionic charge. The carbonate ion, a polyatomic ion, is introduced with its formula. The tutorial then demonstrates how to balance the charges using the crisscross method, resulting in the formula Fe2(CO3)3. The video concludes by verifying the formula to ensure the net charge is zero.

What is the element symbol for iron used in the formula for Iron(III) Carbonate?

• I

• Ir

• In

• Fe

What is the charge of iron in Iron(III) Carbonate?

• 2+

• 3+

• 1+

• 4+

Which of the following is the correct formula for the carbonate ion?

• CO3 2-

• C2O3 2-

• CO3 3-

• CO2 3-

Why is it important to memorize the carbonate ion?

• It is frequently used in organic chemistry.

• It is not found on the periodic table.

• It is a rare element.

• It has a variable charge.

What method is used to balance the charges in Iron(III) Carbonate?

• Division method

• Substitution method

• Crisscross method

• Addition method

What is the purpose of using parentheses in the formula for Iron(III) Carbonate?

• To indicate the number of iron atoms

• To separate the metal from non-metals

• To group the carbonate ion

• To show the charge of iron

How do you verify the formula for Iron(III) Carbonate?

• By ensuring the charges add up to zero

• By checking the atomic mass

• By counting the number of atoms

• By comparing with other compounds

What is the net charge of Iron(III) Carbonate when the formula is correct?

• 0

• +1

• -1

• +2