S(s) + 2 H2SO4 (aq) → 3 SO2 (g) + 2 H20 (L)
How many moles of sulfur dioxide will be produced if 4.2 mol H2SO4 completely reacts with
excess sulfur?

your answers are a,b,,e and f

i hope this

the dependant variable is spilled water

the independent is the heat

lol for the pointsss

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