NaBr - nonpolar covalent
HCL - nonpolar covalent
NHsubscript3-polar covalent
BRsubscript2 - polar covalent
2006-12-18 13:28:04 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
NaBr is a salt, so it has an ionic bond. That one's wrong.
HCl is a strong acid, meaning it easily dissociates into H+ and Br-, so it probably has either an ionic bond or a VERY polar covalent bond. That one's wrong.
Br2 has two of the same atom bound together. It can't possibly be polar because there's no reason for one Br to pull on the electrons in the bond harder than the other one. So that one's wrong.
That leaves NH3. I know it's right, partly because it's the only one left, and partly because I happen to know that N pulls harder on electrons than H does, resulting in a polar covalent bond.
2006-12-18 13:32:42 · answer #1 · answered by Amy F 5 · 4⤊ 1⤋
3
2016-04-12 02:15:03 · answer #2 · answered by Joshua 2 · 1⤊ 0⤋
HCl is a covalent bond because H's electron and one Cl electron are shared. It's polar because H and Cl have (very) different electronegativies.
2006-12-18 13:31:13 · answer #3 · answered by dgbaley27 3 · 0⤊ 6⤋
NH3 - its type of bonding is polar covalent.
2006-12-18 14:11:35 · answer #4 · answered by Tora 2 · 6⤊ 0⤋