Предмет: Химия, автор: КайтоКид

Решите уравнения: (Распад на ионы)
1)H2SO4+NaOH=
2)H2SO4+MgO=
3)H2SO4+CaCO3=
4)H2SO4+Zn=

Ответы

Автор ответа: nastenkapb
0
1)H2SO4(2-)+2Na OH=H2O+Na2SO4(вверху степень 2-) На ионы: 2H+SO4+2Na+2OH=H2O+2Na+SO4. Степень по табл растворимости над каждым элементом поставь. Потом SO4 и SO4 сокращаются 2Na 2Na тоже сокращаются их зачеркиваем. И остается: 2H+2OH=H2O. Вот и все. Остальные делаются так же..... только надо смотреть по таблице растворимости, если стоит буква Р, то эти элементы расписываем на ионы, а если Н , то не расписываем, потому что выделяется газ или осадок......... и тогда ставить стрелочку вниз или вверх. И не расписывать.
Автор ответа: КайтоКид
0
спасибо
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