47.27% Cu
52.73% Cl
CuCl2 has 52,632 % chlorine and 47,368 % copper.
The anion in CuCl2 is chloride (Cl-).
the percentage by mass of each element in a compound.
The percentage of oxygen (in mass) is 29,776 %.
CuO + 2HCL - CuCl2 + H2O
the percentage composition of aluminum sulfate is 342
Approximately 50 of a tree's composition is carbon.
The percentage composition of molar mass in a compound is the percentage of each element's mass contribution to the total molar mass of the compound.
The percentage composition of the phosphoric acid is: H: 3,0857 % O: 65,307 % P: 31,6074 %
Ammonia (NH3) has a percentage composition of 82.35% nitrogen and 17.65% hydrogen.
Iron has the highest percentage composition on Earth's crust, making up about 5.6% by weight.
cu(II) + 2agcl --> 2ag+cucl2