Given the following equation: $Cu+2AgN{O}_{3}Cu(N{O}_3{)}_2+2Ag$

How many moles of $Cu$ are needed to react with $3\mathrm{.}50$ moles of $AgN{O}_3?$ If $89\mathrm{.}5$ grams of Ag were produced, how many grams of $Cu$ reacted?

$7.$ Molten iron and carbon monoxide are produced in a blast furnace by the reaction of iron$($III$)$ oxide and coke $($pure carbon$).$ If $25\mathrm{.}0$ kilograms of pure $F{e}_2{O}_3$ is used, how many kilograms of iron can be produced? The reaction is: $F{e}_2{O}_3+3C-2Fe+3CO$

$8.$ The average human requires $120\mathrm{.}0$ grams of glucose $(C_6{H}_{12}{O}_6)$ per day. How many grams of $C{O}_2($in the photosynthesis reaction$)$ are required for this amount of glucose? The photosynthetic reaction is: $6C{O}_2+6H_{2}O{C}_6{H}_{12}{O}_6+6O_2$

$9.$ Using the following equation:

$Pb(S{O}_4{)}_2+4LiN{O}_{3}Pb(N{O}_3{)}_4+2L{i}_{2}S{O}_4$

How many grams of lithium nitrate will be needed to make $250$ grams of lithium sulfate, assuming that you have an adequate amount of lead $($IV$)$ sulfate to do the reaction?