Răspuns:
Explicație:
1 M CO2=12+2*16=44
44g CO2.....12gC.....32gO
100g...............x............y
x= 100*12/44 =
y 100*32/44
2. R M H2SO4 =2*1:32: 4*16=1:16:32
49 g H2SO4.....1gH.....16gS .....32gO
100......................x..........y.................z
calculeaza