Допишите уравнения, иллюстрирующие химические свойства IIA группы ПСХЭ Д. И. Менделеева.
1) Ba + H2O =
2) Ca + N2 =
3) Mg + O2 =
4) Mg + H2SO4 =
5) Ca + S =
6) Ba + N2 =
7) Ca = Cl2 =
8) Be + NaOH + H2O =
1) Ba + H2O =
2) Ca + N2 =
3) Mg + O2 =
4) Mg + H2SO4 =
5) Ca + S =
6) Ba + N2 =
7) Ca = Cl2 =
8) Be + NaOH + H2O =
Answers & Comments
1) Ba + 2 H2O = Ba(OH)2 + H2
2) 3 Ca + N2 = Ca3N2
3) 2 Mg + O2 = 2 MgO
4) Mg + H2SO4 = MgSO4 + H2
5) Ca + S = CaS
6) 3 Ba + N2 = Ba3N2
7) Ca + Cl2 = CaCl2
8) Be + 2NaOH + 2H2O = Na2[Be(OH)4] + H2
Удачи.