Question

completati reactiile de mai jos: a) Na2O +HOH; b) Na OH+Ni(NO3); c) Ca(OH)2+CO2; d) Na+HOH; e) H NO3+Ca(OH)2

Answer 1

Na2O + H2O = 2NaOH
2NaOH + Ni(NO3)2 = Ni (OH)2 + 2NaNO3
Ca (OH)2 + CO2 = CaCO3 + H2O
Na + H2O = NaOH + 1/2 H2
2HNO3 + Ca (OH)2 = Ca (NO3)2 + 2H2O

Answer 2

Na₂O+H₂O⇒2NaOH
2NaOH+Ni(NO₃)₂⇒2NaNO₃+Ni(OH)₂
Ca(OH)₂+CO₂⇒CaCO₃+H₂O
2Na+2H₂O⇒2NaOH+H₂↑
2HNO₃+Ca(OH)₂⇒Ca(NO₃)₂+2H₂O