You are tasked with finding out whether the ice on Pluto or in Antarctica can produce more water. Pluto has a mass of 1.27x1022 kg and contains about 30% ice. Assume that the density of this ice is the
same as it is at -175 °C. If humans traveled to Pluto on a spacecraft and were able to remove all of the ice
from Pluto, and melt the ice, how many km of liquid water would form at 4 °C?
Express the volume in cubic kilometers to three significant figures.

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

answer; capital earns interest; entrepreneurship receives a profit or incurs a loss;