Covalent solutes are considered non-electrolytes. What does this mean for the conductivity of the solution?
Non-electrolytes dissolve and completely dissociate in water providing
charged ions to conduct electricity.
Non-electrolytes dissolve and do not dissociate in water providing no
charged ions to conduct electricity.
Being a non-electrolyte refers the type of bonding and has no bearing on
conducting electricity
D)
Non-electrolytes do not dissolve in water and can not conduct electricity.

Non-electrolytes dissolve and do not dissociate in water providing no charged ions to conduct electricity.

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