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minako444
@minako444
July 2022
2
4
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Помогите составить уравнения по химии, пожалуйста срочно
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krioira
4Al
+
3
O2
→
2
Al2O3
Al2O3
+
6
HCl
→
2
AlCl3
+
3
H2O
AlCl3
+
3
H2O
→
Al
(OH)
3
+
3
HCl
2
Al
(OH)
3
+
3
H2SO4
→
Al2
(SO4)
3
+
6
H2
O
0 votes
Thanks 0
svetka1574
1) CaO + 2HCl -> CaCl2 + H2O
CaO + 2H(+) + 2Cl(-)-> Ca(+2) + 2Cl(-) + H2O
CaO + 2H(+) -> Ca(+2) + H2O
NaOH + HCl -> NaCl + H2O
Na(+) + OH(-) + H(+) + Cl(-) -> Na(+) + Cl(-) + H2O
H(+) +OH(-) -> H2O
K2S + 2HCl -> 2KCl + H2S
2K(+) + S(-2) + 2H(+) + 2Cl(-) -> 2K(+) + 2Cl(-) + H2S
2H(+) + S(-2) -> H2S
Zn + 2HCl -> ZnCL2 + H2
2) 4Al + 3O2 -> 2Al2O3
Al2O3 + 6HCl -> 2AlCl3 + 3H2O
AlCl3 + 3NaOH -> Al(OH)3 + 3NaCl
2Al(OH)3 + 3H2SO4 -> Al2(SO4)3 + 6H2O
1 votes
Thanks 1
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Answers & Comments
Al2O3+6HCl → 2AlCl3+3H2O
AlCl3+3H2O → Al(OH)3+3HCl
2Al(OH)3+3H2SO4 → Al2(SO4)3+6H2O
CaO + 2H(+) + 2Cl(-)-> Ca(+2) + 2Cl(-) + H2O
CaO + 2H(+) -> Ca(+2) + H2O
NaOH + HCl -> NaCl + H2O
Na(+) + OH(-) + H(+) + Cl(-) -> Na(+) + Cl(-) + H2O
H(+) +OH(-) -> H2O
K2S + 2HCl -> 2KCl + H2S
2K(+) + S(-2) + 2H(+) + 2Cl(-) -> 2K(+) + 2Cl(-) + H2S
2H(+) + S(-2) -> H2S
Zn + 2HCl -> ZnCL2 + H2
2) 4Al + 3O2 -> 2Al2O3
Al2O3 + 6HCl -> 2AlCl3 + 3H2O
AlCl3 + 3NaOH -> Al(OH)3 + 3NaCl
2Al(OH)3 + 3H2SO4 -> Al2(SO4)3 + 6H2O