1. Which set of diagrams shows a balanced chemical equation? А
Reactants
Products
H
o
s
S
H
н
O
o
S
s s
B
Reactants
Products
H
H
н
Н
o
s
S s
H
H
H
H
o
o
s
С
Reactants
Products
H
H
H
H
o
S
S
HH
H
H
o
o
S
S
S
D
Reactants
Products
H
H
O O
O A. Diagram A
O B. Diagram B
O C. Diagram
O D. Diagram D

im pretty sure its b

girl imma just put my comment here because i need a couple point okurrttt

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