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goonya
@goonya
July 2022
2
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Даны вещества: кремний, соляная кислота, едкий натр, гидрокарбонат натрия. Напишите уравнения четырех возможных реакций между этими веществами.
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feyadindin
Si + 2NaOH + H2O = Na2SiO3 + H2↑
HCl + NaOH = NaCl + H2O
HCl + NaHCO3 = NaCl + CO2↑ + H2O
NaOH + NaHCO3 = Na2CO3 + H2O
3 votes
Thanks 2
mrvladimir2
Verified answer
NaOH+HCl=NaCl+H2O
NaHCO3+HCl=NaCl+H2O+CO2
2NaOH+Si+H2O=Na2SiO3+2H2
NaOH+NaHCO3=Na2CO3+H2O
2 votes
Thanks 4
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Answers & Comments
HCl + NaOH = NaCl + H2O
HCl + NaHCO3 = NaCl + CO2↑ + H2O
NaOH + NaHCO3 = Na2CO3 + H2O
Verified answer
NaOH+HCl=NaCl+H2ONaHCO3+HCl=NaCl+H2O+CO2
2NaOH+Si+H2O=Na2SiO3+2H2
NaOH+NaHCO3=Na2CO3+H2O