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jspychowaozxr0c
@jspychowaozxr0c
December 2021
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Осуществите цепочку химических превращений : Al -> AlCl3 -> Al -> Al2S3 -> Al(OH)3 -t->Al2O3 -> Al .
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dima6klon
1) 2Al+6HCl=2AlCl3+3H2
2) 2AlCl3+3Mg=2Al+3MgCl2
3) 2Al+3S=Al2S3
4) Al2S3+6H2O=2Al(OH)3+3H2S
5) 2Al(OH)3=Al2O3+3H2O
6) Al2O3+3H2=2Al+3H2O
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innysik51511
2 Al + 6 HCl = 2 AlCl3 + 3 H
2
2 AlCl3 = 2 Al + 3 Cl
2
2 Al + 3 H2S = Al2S3 + 3 H
2
Al2S3 + 6 H2O = 2 Al(OH)3 + 3 H2S
2 Al(OH)3 = Al2O3 + 3 H2O
2 Al2O3 = 4 Al + 3 O
2
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Answers & Comments
2) 2AlCl3+3Mg=2Al+3MgCl2
3) 2Al+3S=Al2S3
4) Al2S3+6H2O=2Al(OH)3+3H2S
5) 2Al(OH)3=Al2O3+3H2O
6) Al2O3+3H2=2Al+3H2O
2 AlCl3 = 2 Al + 3 Cl2
2 Al + 3 H2S = Al2S3 + 3 H2
Al2S3 + 6 H2O = 2 Al(OH)3 + 3 H2S
2 Al(OH)3 = Al2O3 + 3 H2O
2 Al2O3 = 4 Al + 3 O2