Question

directions: write the formulas of the following covalent compounds:

1. nitrogen trichloride
2. boron monocarbide
3. dinitrogen trioxide
4. phosphorus pentafluoride
5. tetraphosphorus decoxide

Explanation:

Step1: Nitrogen trichloride

The prefix "tri -" means 3. Nitrogen is \(N\) and chlorine is \(Cl\). So the formula is \(NCl_3\).

Step2: Boron monocarbide

The prefix "mono -" means 1. Boron is \(B\) and carbon is \(C\). So the formula is \(BC\).

Step3: Dinitrogen trioxide

The prefix "di -" means 2 (for nitrogen, \(N\)) and "tri -" means 3 (for oxygen, \(O\)). So the formula is \(N_2O_3\).

Step4: Phosphorus pentafluoride

The prefix "penta -" means 5. Phosphorus is \(P\) and fluorine is \(F\). So the formula is \(PF_5\).

Step5: Tetraphosphorus decoxide

The prefix "tetra -" means 4 (for phosphorus, \(P\)) and "deca -" means 10 (for oxygen, \(O\)). So the formula is \(P_4O_{10}\).

Answer:

1. \(NCl_3\)
2. \(BC\)
3. \(N_2O_3\)
4. \(PF_5\)
5. \(P_4O_{10}\)