Question

select the correct answer. what is the chemical formula of trisilicon tetranitride? a. si₃n₄ b. si₄n₃ c. si₃n₆ d. si₆n₃ e. si₄n₆

Explanation:

To determine the chemical formula of a compound from its name (trisilicon tetranitride), we use the prefixes in the name to indicate the number of atoms of each element. The prefix "tri - " means 3, and "tetra - " means 4. For trisilicon tetranitride, silicon (Si) has a prefix of "tri - " so there are 3 Si atoms, and nitrogen (N) has a prefix of "tetra - " so there are 4 N atoms. So the formula should be $\ce{Si_3N_4}$.

Answer:

A. $\ce{Si_3N_4}$