Question

unit 5 sections a & b test review
part a. naming ionic and molecular compounds
for each compound, identify it as either an ionic or a molecular, and then using the correct naming system, name the compound. (1pt for ionic/molecular, 2pts each correct name)

chemical formula	ionic or molecular compound?	chemical name
2. $\ce{se3o6}$
3. $\ce{nh4clo}$

Explanation:

Step1: Classify $\text{P}_5\text{Cl}_{10}$

$\text{P}_5\text{Cl}_{10}$ consists of two nonmetals (phosphorus and chlorine), so it is a molecular compound. Use prefixes to name it: penta- for 5 P, deca- for 10 Cl, and adjust the nonmetal ending to -ide.

Step2: Classify $\text{Se}_3\text{O}_6$

$\text{Se}_3\text{O}_6$ consists of two nonmetals (selenium and oxygen), so it is a molecular compound. Use prefixes: tri- for 3 Se, hexa- for 6 O, adjust oxygen ending to -ide.

Step3: Classify $\text{NH}_4\text{ClO}$

$\text{NH}_4\text{ClO}$ contains the ammonium ion ($\text{NH}_4^+$) and hypochlorite ion ($\text{ClO}^-$), so it is an ionic compound. Name it by stating the cation first, then the anion.

Answer:

Chemical Formula	Ionic or Molecular Compound?	Chemical Name
$\text{Se}_3\text{O}_6$	Molecular	Triselenium hexoxide
$\text{NH}_4\text{ClO}$	Ionic	Ammonium hypochlorite