Предмет: Химия, автор: gamenightstalker

Напишите реакции диссоциации следуйщих соединений: Ca(Ho3)2, H3PO4, Al2O3, BA(OH)2.
ПОМОГИТЕ, ПЛИИЗ!!!

Ответы

Автор ответа: nikolaygr

1

Відповідь:

Ca(HCO3)2=Ca²⁺+2HCO3⁻

H3PO4=3H⁺+PO4³⁻

AI2O3-не диссоциирует

Ba(OH)2=Ba²⁺+2OH⁻

Пояснення:

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Математика, автор: mmirdobra

3. Сумма градусных мер углов ABD
и ACD равна 110° (рис. 3). Найдите
градусную меру дуги ACD.
(№3 на фото)

1 год назад

Предмет: Английский язык, автор: dristun704

5 Complete the sentences. Use the third conditional. have a football pitch have a big boat have six computers have a big garden have a doll have one wish have lots of time have a million pounds have lots of money have a garden 3 4 5 6 1 2 3 4 7 5 6 7 8 9 10 Ryan Tommy Martin Julia Beth Maddy Mum Dad Grandpa Grandma 1 If Ryan had a football pitch, he'd play football all day. 2 If Tommy If Martin. If Julia If Beth If Maddy. If Mum play football all day sail around the world 8 If Dad 9 If Grandpa 10 If Grandma put one in every room get a dog play with a doll's house stop all pollution go on holiday every day buy a big house for his family buy presents for Ryan and Julia plant lots of flowers 6 Circle the correct answers. 1 You don't look well. You mustn't/don't have to play football if you don't want to. 2 I have to / don't have to study because the exam's tomorrow. I want to get a good mark. 3 You must / mustn't talk in a library. 4 Jack doesn't have to / mustn't do any homework - he finished it all in class. 5 You mustn't/ don't have to wear your dirty football boots inside the house. 6 We're going to the cinema after school, so we mustn't / have to eat our dinner early. 7 Children in the UK mustn't/ don't have to go to school on Saturdays. 8 That road is dangerous. You must / mustn't look carefully before you cross.

1 год назад

Предмет: Алгебра, автор: soprasof

Обчисліть значення виразу, якщо х = 3.
A) 16;
Б) -4;
B) 4;
Г) - 16.

1 год назад

Предмет: Английский язык, автор: Аноним

Плизз!!!!!! Срочнооо!!!!

6 лет назад

Предмет: Химия, автор: juliever33

записать 5 уравнений химических реакций:
1) определение иона железа (+2)
2) определение иона железа (+3) укажите признаки этих реакций (цвет, осадок)

6 лет назад