Need to replace a broken vent cover, 4 inches round with holesSits on top of a Big Green EggWould see 650 to 700 degree tempsReplacing a cast iron partHow thick would the metal need to be to withstand that heat?
3CuCl2 +3 H2O +2Al -3 H2 + 2AlCl3 + 3CuO Aluminum replaces the Cu in the CuCl2H2 gas is producedCuO precipitates.
The quick answer is 3CuCl2 + 3H2O + 2Al - 3H2 + 2AlCl3 + 3CuO The longer answer is thisBalancing the equations is not that hard if you approach is systematicallyWe start with the original equation: CuCl2 + H2O + Al - H2 + AlCl3 + CuO I like to go from left to rightWe see Cu firstCu is balanced, next we look at ClCl is not balanced so we balance it and forget about the rest for now 3CuCl2 + H2O + Al - H2 + 2AlCl3 + CuO Now we go back to the start, Cu is not balanced any more so we balance it3CuCl2 + H2O + Al - H2 + 2AlCl3 + 3CuO Go back to the startNow Cu is balanced, Cl is balanced, H is balanced, but O is not3CuCl2 + 3H2O + Al - H2 + 2AlCl3 + 3CuO Go back to the startNow Cu is balanced, Cl is balanced, but H is not3CuCl2 + 3H2O + Al - 3H2 + 2AlCl3 + 3CuO Go back to the startNow Cu is balanced, Cl is balanced, H is balanced, O is balanced, but Al is not3CuCl2 + 3H2O + 2Al - 3H2 + 2AlCl3 + 3CuO That's all there is too it!
This is a redox reaction in which Al is oxidized to Al+3 and H+ is reduced to H (in a diatomic there is no charge on the atoms in the molecule)In this case you do not need to split the equation into half reactions to balanceHowever, you should always balance O and H at the very endFirst balance the Cl: 3CuCl2 + H2O + Al - H2 + 2AlCl3 + CuO Then balance the Al and Cu: 3CuCl2 + H2O + 2Al - H2 + 2AlCl3 + 3CuO Next is the O: 3CuCl2 + 3H2O + 2Al - H2 + 2AlCl3 + 3CuO And finally H: 3CuCl2 + 3H2O + 2Al - 3H2 + 2AlCl3 + 3CuO
Best would be to buy the correct replacement part but, to save $$$ Use steel The aluminum one will go away faster and might cause corrosion problems with the eggAluminum also has a much higher coef of thermal expansion so, depending on the exact details, a sufficiently massive Al part might actually crack your egg (unlikely but possible).
