Question

what is the formula for carbon tetrafluoride? what is the formula for iron(iii) phosphate? what is the name of the compound with the formula xeo3? what is the name of the compound with the formula co(no2)3?

Explanation:

Step1: Determine carbon tetrafluoride formula

Carbon has a +4 charge and fluorine has a - 1 charge. To balance the charges, we need 4 fluorine atoms for 1 carbon atom. So the formula is $CF_4$.

Step2: Determine iron(III) phosphate formula

Iron(III) has a +3 charge ($Fe^{3 +}$) and phosphate ion ($PO_{4}^{3-}$) has a - 3 charge. The formula is $FePO_4$.

Step3: Name $XeO_3$

Xenon is the central atom and there are 3 oxygen atoms. The name is xenon trioxide.

Step4: Name $Co(NO_2)_3$

Cobalt has a +3 charge here as nitrite ion ($NO_2^-$) has a - 1 charge and there are 3 of them. The name is cobalt(III) nitrite.

Answer:

1. $CF_4$
2. $FePO_4$
3. Xenon trioxide
4. Cobalt(III) nitrite