1-Na + CI = NaCI tipo de reaccion=
coeficintes de balanceo=
ecuación balanceada=
R E P

2-H2S + HNO = NO + S +H2O
hacer lo que anteriormente en 1 y su R E P

3-Zn + AgNO3 = Zn(NO3)2 + Ag
hacer lo que anteriormente y su R E P

4- Fe + S = FeS
hacer lo que anteriormente y su R E P

5- FeS + O2 = Fe2O3 + SO2
hacer lo que ateriormente y su R E P

Por favor es para hoy a las 9 am

the mantle

explanation:

earth is divided into three layers: the crust or the outermost layer on which we live; the underlying, middle layer - the mantle - and the core (the innermost layer of earth).

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