1. Zapisz trzy metody otrzymywania chlorku sodu.
NaOH + HCl -> NaCl + H₂O
Na₂O + 2HCl -> 2NaCl + H₂O
2Na + Cl₂ -> 2NaCl
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NaOH + HCl -> NaCl + H₂O
Na₂O + 2HCl -> 2NaCl + H₂O
2Na + Cl₂ -> 2NaCl