Particle P: Non-charged particle Particle Q: Positively charged particle Which of the following statements is correct based on the descriptions of each particle? (4 points) a Particle P is an electron and Particle Q is a proton. b Particle P is a neutron and Particle Q is an electron. c Both particles are inside the nucleus of the atom. d Both particles revolve around the nucleus of the atom.

i would say b

explanation:

but i think i would need more information than that

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