Предмет: Химия, автор: wolfes2ice

Помогите пожалуйста! Нужно молекулярное,полное и сокр. ионное у-ние.
1)Аl2(SO4)3+Ca(OH)2=
2)Ca(OH)2+Na2CO3=
3)HCl+Ca(OH)2=
И превратить:
FeCl3 -->Fe(OH)3 -->Fe2O3
1)FeCl3+3NaOH=Fe(OH)3+3NaCl
2)Fe(Oh)3=
помогите дорешать эти 2 и 3 напишите!пожалуйста!очень срочно нужно!

Ответы

Автор ответа: svetka1574
2


1) Al2(SO4)3 + 3Ca(OH)2 =2 Al(OH)3 + 3CaSO4

2Al(+3) + 3SO4(-2) + Ca(OH)2 = 2Al(OH)3 + 3CaSO4

2) Ca(OH)2 + Na2CO3 = CaCO3 + 2NaOH

Ca(OH)2 + 2Na(+) + CO3(-2) = CaCO3 + 2Na(+) + 2OH(-)

Ca(OH)2 + CO3(-2) = CaCO3 + 2OH(-)

3) 2HCl + Ca(OH)2 = CaCl2 +2 H2O

2H(+) + 2Cl(-) + Ca(OH)2 = Ca(+2) + 2Cl(-) + 2H2O

2H(+) + Ca(OH)2 = Ca(+2) + 2H2O

FeCl3 + 3NaOH = Fe(OH)3 + 3NaCl

Fe(+3) + 3Cl(-) + 3Na(+) + 3OH(-) = Fe(OH)3 + 3Na(+) + 3Cl(-)

Fe(+3) + 3OH(-) = Fe(OH)3

2Fe(OH)3 = Fe2O3 + 3H2O


wolfes2ice: спасибо огромное!)
wolfes2ice: Света,помогите пожалуйста,прошу!!
Сторона АС треугольника АВС проходит через центр описанной около него окружности. Найдите угол С,если угол А=75 градусов.
wolfes2ice: высота параллелограмма на 6 см больше стороны,к которой она проведена. какую длину может иметь эта высота, если известно,что площадь параллелограмма меньше 160 см^2
wolfes2ice: Умоляю Вас!!!
Похожие вопросы
Предмет: Английский язык, автор: kurtseitowaily5428
Переведите пожалуйста
1)The walk Natalie raised her face to the warm spring sun and took a deep breath. How wonderful it was, she thought. to be out in the fresh air again after a long, cold winter. "Come on, hurry up, or we will be late for lunch!" Leo said as he walked along the forest path ahead of her. They had been walking through the woods all morning and Leo was beginning to get hungry after all the exercise. "We've got plenty of time," replied Natalie cheerfully,"and I don't want to go home yet. It's so lovely here," she added. Leo was surprised by her enthusiasm. Natalie hadn't been very keen to come walking when he first suggested it. "You are funny," he said. "Where did you get (you) so much energy from all of a sudden?" "Oh, I'm not sure," Natalie said, laughing happily,"but perhaps the fresh spring air and the good company might have something to do with it." Unusual Restaurants.
2)All over the world there are restaurants for people who are looking for dinner with a difference Dubai may be hot, but diners need to dress up very warmly for a meal at the Chillout restaurant, where everything is made of ice. Other ice restaurants can be found in Finland, Canada and Russia. In the Canary Islands, the El Diablo Restaurant uses volcanic heat to cook the meals. Situated on the volcano itself, the circular restaurant has glass walls, providing breathtaking views of the moon-like landscape and the sea beyond. The Ithaa Restaurant in the Maldives is 5 metres below the Indian Ocean. The curved, transparent walls give diners an amazing view of the surrounding coral reef.There is a covered staircase leading down to the restaurant so diners remain completely dry.
Предмет: Английский язык, автор: kappid