))
Вот Na₂O+H₂O-->NaOH+H₂O
NaOH+H₂SO₄-->Na₂SO4+H₂O
Na₂O+HNO₃-->NaNO₃+H₂O
NaOH+HCl-->NaCl+H₂O
Наверно как то так
<span>AlCl3+3NaOH =Al(OH)3+3NaCl
CaSO4+2NaOH =Na2SO4+Ca(OH)2
FeSO4+2NaOH>>Fe(OH)2+Na2SO4
FeCl3+3NaOH>>Fe(OH)3 +3NaCl
4Fe(OH)2+O2+2H2O>>4</span>Fe(OH)3
<span>8KJ+2N02+4H2O=4J2+N2+8KOH </span>
p1*v1 / T1= p2*v2 / T2. ( v2=2v1 , T2=T1 / 2 .)
p1*v1 / T1=p2*2v1*2 / T1 сократим на v1 , T1.
p1=4p2.
p2=p1 / 4. ( уменьшилось в 4 раза)
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