Internal means inside and external means outside
Magnesium oxalate<span> is an inorganic compund </span><span> comprising a magnesium </span> cation<span> with a 2+ charge bonded to an oxalate </span> anion.
Answer would be,1.86 x 10^4 hopefully that help you ❤
160gof CO2×1molof CO2\44g of CO2×1mole of C\1mol of CO2×12g of C\1mole of C=
43.63g of C