determine the total number of bonding electron pairs in ch₂nh.

Explanation:

Step1: Draw the Lewis structure

Carbon (C) has 4 valence - electrons, hydrogen (H) has 1 valence - electron, and nitrogen (N) has 5 valence - electrons. In (CH_2NH), the carbon atom is bonded to two hydrogen atoms and one nitrogen atom, and the nitrogen atom is bonded to one hydrogen atom.

Step2: Count the bonding electron pairs

The C - H bonds are single bonds, and there are 3 C - H bonds. The C - N bond is also a single bond. Each single bond consists of 1 bonding electron pair. The number of C - H bonds is 3 and the number of C - N bond is 1 and the number of N - H bond is 1. So the total number of single bonds is (3 + 1+1=5). Each single bond contains 1 bonding electron pair.

Answer:

5