# N 1864, the Solvay process was developed to make soda ash. One step in the process is represented by the balanced equation below. What is the Lewis electron-dot diagram representing the reactant containing nitrogen in the equation?

## $N a C l + N {H}_{3} + C {O}_{2} + {H}_{2} O \to N a H C {O}_{3} + N {H}_{4} C l$

There are 5 electrons from nitrogen, and three electrons from hydrogen. 3 of the nitrogen-centred electrons pair with the 3 hydrogen electrons to make $3 \times N - H$ bonds.