Question

question 1 (3 points) classify each substance as ionic or covalent. sodium sulfide carbon monoxide kcl sulfur trioxide p₂o₅ naoh

Explanation:

Step1: Recall bonding rules

Ionic compounds form between metals and non - metals, covalent compounds form between non - metals.

Step2: Analyze sodium sulfide ($Na_2S$)

Sodium is a metal and sulfur is a non - metal, so it is ionic.

Step3: Analyze carbon monoxide (CO)

Carbon and oxygen are non - metals, so it is covalent.

Step4: Analyze KCl

Potassium is a metal and chlorine is a non - metal, so it is ionic.

Step5: Analyze sulfur trioxide ($SO_3$)

Sulfur and oxygen are non - metals, so it is covalent.

Step6: Analyze $P_2O_5$

Phosphorus and oxygen are non - metals, so it is covalent.

Step7: Analyze NaOH

Sodium is a metal, oxygen and hydrogen are non - metals. The bond between sodium and the hydroxide group is ionic.

Answer:

sodium sulfide: ionic
carbon monoxide: covalent
KCl: ionic
sulfur trioxide: covalent
$P_2O_5$: covalent
NaOH: ionic