Question

the correct formulas for the binary covalent compounds triiodide heptafluoride and tetraphosphorous hexoxide are:

1. ( i_7f_3 ) and ( p_6o_4 )
2. ( i_4f_6 ) and ( p_5o_7 )
3. ( i_5f_6 ) and ( p_7o_7 )
4. ( i_3f_7 ) and ( p_4o_6 )

Explanation:

• In binary covalent compounds, the prefixes indicate the number of atoms of each element.
• For "triiodide heptafluoride": "tri - " means 3 (for iodine, \(I\)) and "hepta - " means 7 (for fluorine, \(F\)), so the formula is \(I_3F_7\).
• For "tetraphosphorous hexoxide": "tetra - " means 4 (for phosphorus, \(P\)) and "hexa - " means 6 (for oxygen, \(O\)), so the formula is \(P_4O_6\).

Answer:

1. \(I_3F_7\) and \(P_4O_6\)