A student observes two cells under a microscope and lists observations in the table shown. Structure
nucleus
chloroplast
mitochondria
cell wall
Cell A
yes
yes
yes
yes
Cell B.
yes
no
yes
no
Which statement most likely describes the two cells?
O Both Cells A and B are plant cells.
O Both Cells A and B are animal cells.
O Cell A is a plant cell; Cell B is an animal cell.
O Cell A is an animal cell; Cell B is a plant cell.

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