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rectifica greselile si citeste ecuatiile si citeste apoi ecuatiile reactantilor chimice : 2 AlCl3 + 6KOH= 2Al (OH)3 + 3KCl .
K +2H2O = 2KOH+1/2 H2
Ca + 2 O2 +CaO2


Răspuns :

K+H2O=KOH+1/2H2
Ca+1/2O2=CaO
AlCl3+3KOH=Al(OH)3+3KCl