И с гидроксидом натрия, и с серной кислотой реагирует 1) ZnO 2)MgO 3)CaO 4)FeO - №24755243

И с гидроксидом натрия, и с серной кислотой реагирует
1) ZnO
2)MgO
3)CaO
4)FeO
- Предмет:
  Химия
- Автор:
  paco
- 5 лет назад

Ответы 1

ответ......................... 1
- Автор:
  brandt
- 5 лет назад
- 0
Добавить свой ответ

Еще вопросы

Напишите сочинение на тему"менің қалам"
- Предмет:
  Қазақ тiлi
- Автор:
  aggie
- 5 лет назад
- Ответов:
  
  1
- Смотреть
Найти область определения , помогите пожалуйста , очень нужно , срочно
- Предмет:
  Алгебра
- Автор:
  toby45
- 5 лет назад
- Ответов:
  
  4
- Смотреть
Грамматические упражнения (времена) - What you (to do) here? - I (to wait) for my friend. I (to stand) here since 10, but he (not to come) yet. If he (not to appear) in some minutes I (to go) home. - What you (to like) to read? - Detective stories. This one, I (to read) now, is very interesting. - It (to take) from the library? - No, my friend (to bring) it to me some days ago after he (to read) it himself. It is summer now. The exams (to take) by the pupils. After all the exams (to pass) there (to be) holidays! - What you (to do)? - I am a teacher. - When you (to start) working? - I (to begin) working as a teacher after I (to graduate) from the University. Next year I (to teach) for 10 years already! - Your hands (to cover) in ink! - I (to write) grammar exercises. - You (to write) all of them? - Not yet. I (to have a rest) now. When all exercises (to write) I (to translate) the text. - What you (to do) in the evening yesterday? I (to call) you several times, but nobody answered. - From 5 to 7 I (to clean) my flat. When everything (to do) I (to go) for a walk. I think I (to leave) already when you (to phone) me. - You (to appoint) to the new post? - Not yet. When I (to phone) them yesterday my documents still (to check). I (to inform) after everything (to check). Many houses (to build) in our town every year and now a new house (to build) not far from ours. The town (to change) greatly for the last few years. - I (to see) you yesterday in the library. What you (to do) there? - I (to read) for the coming exam. I (to sit) for 3 hours there when you (to come) in. - Everything (to read) for the exam now? - Not yet. But I (to do) everything by the beginning of the week. - You (to look) tired, what’s the matter with you? - I (to run) at the stadium. - You (to train) for a sport competition? - Yes, I (to go) to take part in the competition next month. - Good luck! I think you (to be able) to win the first prize if you (to train) hard. - What you (to do) in the kitchen all morning? - I (to make) pies. Apple pies (to be) ready, strawberry ones (to bake) now. After all pies (to make) I (to clean) the kitchen. You (to help) me? - Where you (to carry) your dog? - To the local vet. - What (to happen) to him? - There (to be) something wrong with his ear I’m afraid, he (to scratch) it for some days already! - Never mind, the vet certainly (to prescribe) the right medicine after your dog (to examine).
- Предмет:
  Английский язык
- Автор:
  grace
- 5 лет назад
- Ответов:
  
  1
- Смотреть
1). В классе 28 учеников. Одна четвёртая часть учеников занимается спортом. Сколько человек занимается спортом? 2) На ветке сидит 12 птиц . Одна третья часть всех птиц улетела. Сколько птиц осталось на ветке?
- Предмет:
  Математика
- Автор:
  snickers71
- 5 лет назад
- Ответов:
  
  1
- Смотреть

How much to ban the user?

1 hour 1 day 100 years