яqwertyuiop123
01.07.2021 14:24

решите
буду очень благодарен


решите буду очень благодарен

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Ответ:
сом38
20.03.2023 02:33
1.ZnCl2->HCl->KCl->Cl2->I2->HI
1)ZnCL2 + H2O -> ZnO + 2HCL 
2)HCL + KOH -> KCL + H2O 
3)2 + H2 -> 2Hi 
4)CL2 + 2Hi -> i2 + 2HCL 
5)2KCL (эл-лиз) -> CL2 + 2KOH
2.HCl+AgNO3 = AgCl +HNO3 
3.3Mg+8HNO3= 3Mg(NO3)2+4H2O+2NO
восстановитель|Mg(0) -2 =Mg(+2) |3|окисление
окислитель| N(+5) +3=N(+2)|2|восстановление
4.m(KOH)=100г
M(KOH)=56g/mol
n(KOH)=1.79mol
n(CO2)=45/22.4=2mol
2KOH+CO2=K2CO3+H2O
n(KOH)/n(CO2)=2/1
KOH+CO2=KHCO3
n(KOH)/n(CO2)=1/1
CO2-в избытке, n(KOH)/n(CO2)>1/1. Реакция идет до кислой соли и CO2 в избытке.
Расчет по KOH (недостаток).
n(KHCO3)=1.79моль,
m(KHCO3)=nM=1.79*100=179г.
ответ 179г KHCO3. 
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Ответ:
artur282
29.06.2021 01:00
One was the daughter of a miller.Нe once boasted to the king that she is able to spin gold from straw yarn.In fact, she did not know how to spin gold from straw yarn.King called the miller's daughter.He put her in a room that was filled with straw.And instructed her to make this straw gold yarn.The girl began to cry.And then came the Rumpelstiltskin, and offered to help.She agreed, and he fulfilled his promise.Rumpelstiltskin took for their help in her jewelry.But the king has demanded more gold yarn girl needed help again dwarf.When she had nothing left, and the girl needed help, the dwarf had been promised to her first child.King married this girl, and she bore him a child, then came the dwarf to pick rebenok.No Queen did not want to give the child and offered her dwarf guess it imya.On hoped she did not guess, because it was very difficult . one day, someone from the wards went into the woods and saw the dwarf, who sang and shouted their imya.On next day the Queen divined name Rumpelstiltskin and he disappeared.
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