Question

write the chemical formula for each of the following compounds.

1. carbon monoxide
2. iron (ii) oxide
3. diphosphorus pentoxide
4. hydrogen sulfate
5. sulfur dioxide

Explanation:

Step1: Recall naming - compound rules

Carbon monoxide has one carbon and one oxygen atom.

Step2: Write the formula

The chemical formula is CO.

Step3: For iron (II) oxide

Iron (II) has a + 2 charge ($Fe^{2 + }$) and oxygen has a - 2 charge ($O^{2 - }$), so the formula is FeO.

Step4: For diphosphorus pentoxide

It has two phosphorus atoms and five oxygen atoms, so the formula is $P_{2}O_{5}$.

Step5: For hydrogen sulfate

Hydrogen has a + 1 charge ($H^{+}$) and sulfate ion is $SO_{4}^{2 - }$, so the formula is $H_{2}SO_{4}$.

Step6: For sulfur dioxide

It has one sulfur and two oxygen atoms, so the formula is $SO_{2}$.

Answer:

1. CO
2. FeO
3. $P_{2}O_{5}$
4. $H_{2}SO_{4}$
5. $SO_{2}$