Question

question 9 of 10
which of the following is the correct name for $\ce{n_{2}s_{5}}$?

a. dinitride pentasulfur

b. nitrogen sulfide

c. dinitrogen pentasulfide

d. dinitrogen sulfide

Explanation:

To name the compound \( \text{N}_2\text{S}_5 \), we use the rules for naming covalent compounds. For covalent compounds, we use prefixes to indicate the number of atoms of each element. The prefix for 2 is "di-" and for 5 is "penta-". The first element is nitrogen, so with 2 atoms, it's "dinitrogen". The second element is sulfur, and since it's a non - metal - non - metal compound (covalent), we change the ending of sulfur to "-ide" and use the prefix "penta-" for 5 atoms, so it's "pentasulfide". Option A is incorrect because the second element should have the "-ide" ending. Option B does not use prefixes to indicate the number of atoms. Option D does not account for the 5 sulfur atoms.

Answer:

C. Dinitrogen pentasulfide