Answer is c
Work out the moles of 2H2O: 1.80/ (16+1+1) = 0.1
The moles of 2H2 are the same (0.1)
The Mr of H2 is 2
So the mass needed to produce 1.80g of water is
0.1 x 2 = 0.2
I’m soooo confusing with what your question is lol
sodium ions and chloride ions
It is not equal because it dose not obey the conservation of mass. 60+25= 85 not 75.
