Anitrogen atom can undergo sp2 hybridization when it becomes part of a carbon–nitrogen double bond, as in h2c=nh. (a) using a sketch, show the electron configuration of sp2 hybridized nitrogen just before the overlapping occurs to make this double bond. (b) using sketches (and the analogy to the double bond in c2h4), describe the two bonds of the carbon– nitrogen double bond. (c) describe the geometry of h2c"nh (using a sketch that shows all expected bond angles).

explanation:

as given the equation is

2al + 6 hcl > 2 alcl3 + 3 h2(g)

as per equation two moles of aluminum reacts with six moles of hcl to give two moles of alcl3 and three moles of hydrogen gas

given: three moles of al are present and 7 moles of hcl

for three moles of aluminum nine moles of hcl will be required

however as 7 moles of hcl are present so the limiting reagent is hcl

hcl is going to decide the number of moles of product formed

when six moles of hcl are present = 3 moles of h2 are formed

when one mole of hcl is present == 3/6 mole sof h2 will be formed

when 7 moles of hcl are present = 3 x 7/ 6 moles of h2 will be formed = 3.5 moles of h2

answer; 4 electrons;