Question

fill in the systematic names of the following chemical compounds.
note: for compounds containing hydrogen, you may give the common name instead.

molecular formula	name of compound
$\ce{n_{2}f_{4}}$	dinitrogen tetrafluoride
$\ce{p_{3}s_{4}}$	$\square$
$\ce{nf_{3}}$	nitrogen trifluoride
$\ce{h_{2}o}$	water

Explanation:

To name the compound with the molecular formula \( \text{P}_4\text{S}_3 \), we use the rules for naming molecular (covalent) compounds. For molecular compounds, we use prefixes to indicate the number of each atom.

• The prefix for 4 (tetra-) is used for phosphorus (P), and the prefix for 3 (tri-) is used for sulfur (S).

So, we combine the prefixes with the element names. Phosphorus is the first element, and sulfur is the second (with the ending changed to -ide).

Answer:

Tetraphosphorus trisulfide