Запишите уравнения реакций в молекулярном и ионном  виде:
1.CaCO3+HCl=
2.KOH+H2SO4=
3.KCl+HNO3=
4.2Ag+SO4=Ag2SO4 н

Вставь пропущенные слова is или are. 

1)There ... a nice woman in the kitchen. 

2)... there an old armchair in Tiny's house ?- Yes there ... 

3) There .... five shelves with interesting books in his room. 

4) There ... no clocks in the living room. 

5) There ... a sofa a table and three chairs in the living room.