The table compares some characteristics of two atoms. Charged Particles
Atom Number of Neutrons Mass Number
X 10 19
Y 8 16

Use the table to determine the number of protons for each atom. Then, choose the statement below that is true about the two atoms.
Atom X and Atom Y are isotopes.
Atom X and Atom Y are in the same family.
Atom X is in a row below Atom Y on the periodic table.
Atom X is in a column to the right of Atom Y on the periodic table.

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

може ли да зареждате повече информация, моля

12 is it do you think so