Răspuns:
Explicație:
36,5 g H............1g H
3,65 g................x=0,1 g
18g H2O..............2g H
36g....................y=4 g
16g CH4.........4 g H
1g.........................z=0,25 g
78 g Al(OH)3............3gH
27g.............................t=1,03 g