Respuesta :
Answer:
I Think it is H2O
Explanation: Water is Hydrogen and 2 oxygen 2 being the 2 oxygen molecules then the other molecules like cool-aid or Magnesium
Examples
C6H12O6 + H2O
NaCI + H2O
KCI + H2O
Ca(OH)2 + H2O
MgC12 + H2O
Hope this helps!