Write a chemical equation for the following reaction. (Use the lowest possible coefficients. Include states-of-matter under the given conditions in your answer.) Water and dinitrogen pentoxide gas react to produce aqueous hydrogen nitrate. Classify the reaction into as many categories as possible. (Select all that apply.) double replacement
single replacement
combustion
synthesis

single replacement

synthesis

Explanation:

it's c. elements are placed in rows based on how may valencies electrons have.

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