Question

obtineti folosind schema seriilor genetice sarurile Na2SO4, H2CO3, AlO3, Ba(OH)2 va rog mult, am nevoie urgent

Answer 1

Na---->Na2O---->NaOH---->Na2SO4
1)2Na+O2--->2NaO
2)Na2O+H2O---->2NaOH
3)NaOH+H2SO4---->Na2SO4+H2O

C---->CO2---->H2CO3
1)C+O2---->CO2
2)CO2+H2O---->H2CO3

Al--->Al2O3---->AlCl--->Al(OH)3----->AlO3 (Aici poate sa fie si mai usor insa si asta este buna )Al--->Al2O3---->Al(OH)3---->AlO3 asa este mai usor 
1)4Al+3O2---->2Al2O3
2)Al2O3+6HCl--->2AlCl3+3H2O
3)AlCl+3NaOH---->Al(OH)3+3NaCl
4)2Al(OH)3--->AlO3+3H2O

Ba---->BaO--->Ba(OH)2
1)2Ba+O2--->2BaO
2)BaO+H2O--->Ba(OH)2