Based on the equation below, which of the following statements best describes what should be observed as the reaction takes place? (you can pick multiple) Zn(s) + 2HCl(aq) --> ZnCl2(aq) + H2(g)

(A) Bubbles forming from chlorine gas production

(B) Bubbles forming from hydrogen gas production

(C) Chlorine forming a solid precipitate

(D) Solid zinc dissolving

let that person have a turn to speak : )

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