## Chemistry (7th Edition)

Published by Pearson

# Chapter 2 - Atoms, Molecules, and Ions - Worked Example - Page 65: 23

#### Answer

(a) $S_2Cl_2$ (b) $ICl$ (c) $NI_3$

#### Work Step by Step

(a) "Di-" represents 2, so we have two sulfurs and two chlorides: $S_2Cl_2$. (b) "Mono-" represents 1, so we have only one chloride, and since the number of iodines is not represented, we assume it is equal to 1: $ICl$ (This is because Iodide and Chloride have equal charges, so they should be equal in number in a neutral compound.) (c) "Tri-" represents 3, so this compound has 3 iodides, and since the number of nitrogens is not represented, we assume it is equal to 1: $NI_3$

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