Предмет: Химия, автор: eyrk56

Оченнь нужно! Помогите пожалуйста(с меня спасибо и отмечу как лучший).
1) Напишите уравнения химических реакций, с помощью которых можно получить соли:
а) кислотный оксид+щелочь
б) металл+неметалл
2)Допишите уравнения химических реакций:
а) H2CO3 + ... стрелка вправо Na2CO3 + H2O
3) Охарактеризуйте химические свойства солей. Запишите уравнения химических реакций:
а) соль+металл
б) соль+кислота
в) соль+щелочь
г) соль+соль
д) соль(стрелка вправо и над ней буква t)
е) соль+вода

Ответы

Автор ответа: Аноним
0
1) а)SO3+Ba(OH)2------>BaSO4+H2O;
б)2Na+Cl2---t-->2NaCl;
2)H2CO3+2NaOH------->Na2CO3+2H2O;
3) CuSO4+Zn------>ZnSO4+Cu;
BaCl2+H2SO4------>BaSO4+2HCl;
CuSO4+2NaOH------->Na2SO4+Cu(OH)2;
BaCl2+Na2SO4-------->BaSO4+2NaCl;
CaCO3---t---->CaO+CO2;
Al2S3+6H2O------->2Al(OH)3+3H2S;
Автор ответа: Аноним
0
Отметь как лучший, ты обещал
Автор ответа: eyrk56
0
чет не могу отметить
Автор ответа: Аноним
0
ясн всё
Автор ответа: eyrk56
0
да реально не могу, мне не жалко
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