Răspuns:
MKCl=39+35,5=74,5g/mol
74,5gKCl.........39gK.......35,5gCl
100gKCl...........xgK...........ygCl
x=100×39/74,5=calculează
y=100×35,5/74,5=calculează
2K+Cl2=>2KCl
KCl clorura de potasiu (săruri)
