Ответ:
Объяснение:
а)
1) 4Al + 3O2 = 2Al2O3
2) Al2O3 + 6HCl = 2AlCl3 + 3H2O
3) AlCl3 + 3NaOH = Al(OH)3 + 3NaCl
4) 2Al(OH)3 + 3H2SO4 = Al2(SO4)3 + 6H2O
5) Al(OH)3 + 3NaOH = Na3AlO3 + 3H2O
б)
1) 2Сa + O2 = 2CaO
2) CaO + H2O = Ca(OH)2
3) Ca + 2H2O = Ca(OH)2 + H2
4) Ca(OH)2 + Na2CO3 = CaCO3 + 2NaOH
5) CaCO3 + CO2 + H2O = Ca(HCO3)2
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Verified answer
Ответ:
Объяснение:
а)
1) 4Al + 3O2 = 2Al2O3
2) Al2O3 + 6HCl = 2AlCl3 + 3H2O
3) AlCl3 + 3NaOH = Al(OH)3 + 3NaCl
4) 2Al(OH)3 + 3H2SO4 = Al2(SO4)3 + 6H2O
5) Al(OH)3 + 3NaOH = Na3AlO3 + 3H2O
б)
1) 2Сa + O2 = 2CaO
2) CaO + H2O = Ca(OH)2
3) Ca + 2H2O = Ca(OH)2 + H2
4) Ca(OH)2 + Na2CO3 = CaCO3 + 2NaOH
5) CaCO3 + CO2 + H2O = Ca(HCO3)2