Which of the following compounds is covalent?

0 ⤊

Which of the following compounds is covalent?

A.CaCl2
B.MgO
C.Al2O3
D.Cs2S
E.PCl3

2006-10-30 22:54:48 · 3 answers · asked by ally 2 in Science & Mathematics ➔ Chemistry

3 answers

The answer is E.

The others are ionic.

To explain this and your other question: ionic bonds are formed when one of the atoms is from group one or two and the other from group seven or six. In other cases they are *mostly* covalent.

2006-10-30 23:04:34 · answer #1 · answered by cordefr 7 · 0⤊ 0⤋

Answer E (phosphorous trichloride), because it contains only non-metals. Compounds with metals in them are either ionic or metallic, never covalent.

2006-10-31 09:52:52 · answer #2 · answered by Robert C 5 · 0⤊ 0⤋

2006-10-31 06:59:04 · answer #3 · answered by that guy 2 · 0⤊ 0⤋