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
nf₃
n₂f₄
p₄s₇
p₄s₃
h₂o

Explanation:

• For \(NF_3\): It is a covalent compound. The prefix for \(N\) (1 atom, prefix "mono -" is often omitted for the first element in simple cases) is not used here as it's a common naming. The prefix for \(F\) (3 atoms) is "tri -". So it's nitrogen trifluoride.
• For \(N_2F_4\): The prefix for \(N\) (2 atoms) is "di -" and for \(F\) (4 atoms) is "tetra -". So it's dinitrogen tetrafluoride.
• For \(P_4S_7\): The prefix for \(P\) (4 atoms) is "tetra -" and for \(S\) (7 atoms) is "hepta -". So it's tetraphosphorus heptasulfide.
• For \(P_4S_3\): The prefix for \(P\) (4 atoms) is "tetra -" and for \(S\) (3 atoms) is "tri -". So it's tetraphosphorus trisulfide.
• For \(H_2O\): The common name is water.

Answer:

• \(NF_3\): nitrogen trifluoride
• \(N_2F_4\): dinitrogen tetrafluoride
• \(P_4S_7\): tetraphosphorus heptasulfide
• \(P_4S_3\): tetraphosphorus trisulfide
• \(H_2O\): water