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MaryLory2003
a fost răspuns

STbiliti coefincientii si interpretati ecuatiile in cele doua acceptiuni:
a) Cu + H₂SO₄ --> CuSO₄ + SO₂ ↑ + H₂O
b) MgO + HNO₃ --> Mg(NO₃)₂ --> H₂O
c) Ca(HCO₃)₂ + HCl --> CaCl₂ + CO₂ ↑ + H₂O
d) CaCl₂ + AgNO₃ --> AgCl ↓ + Ca(NO₃)₂
e) Na₂O + HCl --> NaCl + H₂O
f) HgO --> Hg + O₂ ↑
g) FeCl₃ + NaOH --> Fe(OH)₃ ↓ NaCl
h) Al(OH)₃ + HCl --> AlCl₃ + H₂O
I) Fe(OH)₃ + H₂SO₄ --> Fe₂(SO₄)₃ + H₂O

Răspuns :

Mihaiimbrisca
a) Cu + 2H₂SO₄ --> CuSO₄ + SO₂ ↑ +2H₂O
b) MgO + 2HNO₃ --> Mg(NO₃)₂ --> H₂O
c) Ca(HCO₃)₂ + 2HCl --> CaCl₂ + 2CO₂ ↑ +2H₂O
d) CaCl₂ +2AgNO₃ -->2AgCl ↓ + Ca(NO₃)₂
e) Na₂O + 2HCl --> 2NaCl + H₂O
f) 2HgO --> 2Hg + O₂ ↑
g) FeCl₃ + 3NaOH --> Fe(OH)₃ ↓+ 3NaCl
h) Al(OH)₃ + 3HCl --> AlCl₃ + 3H₂O
I)  2Fe(OH)3 + 3H2SO4 --> Fe2(SO4)3 + 6H2O

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