3.Se tiene media tonelada de Calcita (Carbonato de Calcio) que se descompone por acción del calor formando Óxido de Calcio y Óxido Carbónico. a. Escribir la ecuación de descomposición de la Calcita.

b. Calcular la masa formada de Óxido de Calcio.

c. Calcular el volumen de Dióxido de Carbono desprendido, suponiendo que se lo mide a 20º C y 1,4 atm de presión.

alguien me puede ayudar con esto por favor es un recuperatorio y la profe no había explicado esto porfisss lo suplico
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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

c. orbital shape i hope this is correct