Răspuns:
Explicație:
1.
Mg(OH)2
NH4OH
Fe(OH)3
NaOH
Cu(OH)2
2.
NaOH
Fe(OH)3
KOH
Ni(OH)2
LiOH
Ca(OH)2
Zn(OH)2
Al(OH)3
3.
Fe(OH)2 hidroxid feros
Ca(OH)2 hidroxid de calciu
Zn(OH)2 hidroxid de zinc
KOH hidroxid de potasiu
NH4OH hidroxid de amoniu
4.
III I I
Al(OH)3 NaOH
II I
Cu(OH)2 AgOH
II II
Hg(OH)2 Pb(OH)2
II
Ba(OH)2
5.
Ca(OH)2 hidroxid de calciu var stins
6.
Baze solubile : NaOH
Baze insolubile : Cu(OH)2 , Al(OH)3 , Zn(OH)2 , Fe(OH)3
7.
MgO + H20=Mg(OH)2
CaO+H2O=Ca(OH)2
8.
NaOH
r.a.= 1 : 1 : 1
r.m.= 23 : 16 : 1
=comp. proc. prin masa moleculara
MNaOH= 23 +16 +1=40------>40g/moli
40g NaOH--------23gNa--------16gO--------1g H
100 g--------------------x----------------y--------------z
x=100 . 23 : 40=57,5% Na
y=100 .16 : 40=40% O
z=100 .1 : 40=2,5% H
9.
Mg +2 H2O= Mg(OH)2 +H2
2Na+2H2O= 2NaOH +H2
Ca(OH)2 +2HCl= CaCl2 + 2H2O
Ca(OH)2 + CO2= CaCO3 + H2O
2FeCl3 + 3Ca(OH )2= 3CaCl2 + 2Fe(OH)3
AlCl3 +3 NaOH = 3NaCl + Al(OH)3
