An unknown compound contains only carbon, hydrogen, and oxygen (cxhyoz). combustion of 6.00 g of this compound produced 8.80 g of carbon dioxide and 3.60 g of water.
part a: how many moles of carbon, c , were in the original sample? express your answer numerically in moles. part b: how many moles of hydrogen, h , were in the original sample? express your answer numerically in moles.

The activity series is shown in the attached picture. if the element is below the other, then you can displace the other. following the activity series as a guide, the reactions are as follows: nickel and aluminum chloride3 ni + 2 alcl₃  → 3 nicl₂ + 2 albarium and copper bromideba + cubr  →  no reaction because cu is less oxidizable than bapotassium nitrate and aluminum3 kno₃ + al  → al(no₃)₃ + 3 ksodium phosphate and zincnaso₄ + zn  → znso₄ + na