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Na₂O + H₂O -> 2NaOH
62g - 80g
6,2g - xg
x=8g
2.
MgO + H₂O -> Mg(OH)₂
40g - 58g
x - 232g
x=160g
62 g Na2O - 80 gNaOH
Na2O + H2O-> 2 NaOH
6,2 g Na2O - xg NaOH
wyliczamy mnożąc na krzyż x
x= 8 g
2.
40 g MgO - 58g Mg(OH)2
MgO + H20 -> Mg(OH)2
x g MgO - 232 g Mg(OH)2
x= 160 g