Предмет: Химия, автор: elenakolesnik04

ДАЮ 20 БАЛЛОВ

1. Между реагентами и названием продуктов реакции:
Реагенты:
1)CaCl2+K2CO3 - ...
2)SO2+NaOH - ...
3)NaOH+H2SO4 -...
4)K2CO3+HCl - ...
ПРОДУКТЫ РЕАКЦИЙ:
а)сульфат натрия + вода
б)хлорид калия+углекислый газ+вода
в)сульфит натрия+вода
4)хлорид калия+карбонат кальция


2.Напишите уравнения практически осуществляемых химических реакций в молекулярном и ионном виде.Укажите типы химических реакций.

1.Mg+HCl=
2.MgSO4+KOH=
3.Cu+HCl=

Ответы

Автор ответа: Trofimkirillov
1

N°1

1)CaCl2+K2CO3-г)хлорид калия+карбонат кальция

2)SO2+NaOH-в)сульфит натрия+вода

3)NaOH+H2SO4-а)сульфат натрия+вода

4)K2CO3+HCl-б)хлорид калия+углекислый газ+вода

N°2

1)Mg+2HCl=MgCl2+H2

Mg(2+)+2H(1+)+2Cl(1-)=Mg(2+)+2Cl(1-)+2H(1+)

Реакция замещения

2)MgSO4+2KOH=Mg(OH)2+K2SO4

Mg(2+)+SO4(2-)+2K(1+)+2OH(1-)=Mg(2+)+2OH(1-)+2K(1+)+SO4(2-)

Реакция обмена

3)Cu+2HCl=CuCl2+H2

Cu(2+)+2H(1+)+2Cl(1-)=Cu(2+)+2Cl(1-)+2H(1+)

Реакция замещения

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