Предмет: Химия, автор: Nastya09201

5. За допомогою хiмiчних символів та iндексiв запишіть: а) на два атоми Феруму припадає три атоми Оксигену; б) на один атом Карбону припадає чотири атоми Гідрогену.

Ответы

Автор ответа: videnkova

5

Ответ:

а) Fe₂O₃ (оксид заліза); б) СH₄ (метан)

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: История, автор: ameliazograban600

что такое система уделов? чем она отличается от европейского феодализма?

2 года назад

Предмет: Английский язык, автор: alisademcenko934

СРОЧНО ДАМ 50 БАЛОВ!!!!!!!

2 года назад

Предмет: Английский язык, автор: qOuOp

Read to the text and answer the questions.
Text: ABSENT-MINDED SCIENTIST

Once a well-known scientist who was very absent-minded was travelling by train. When the ticket-collector came for the tickets the scientist couldn't find the ticket anywhere. enib

"It doesn't matter", said the ticket collector, who knew the scientist very well, "I'll come at the next station".

But at the next station there was the same difficulty. The scientist looked for his ticket everywhere but he couldn't find it. "It really doesn't matter", said the ticket collector kindly. "No, no", said the scientist, "I must find it. I want to know where I am going"
Questions:
1. How was a well-known scientist travelling?
2. What happened when the ticket-collector came for the tickets? 3. The ticket-collector knew the scientist very well, didn't he?
4. What did the ticket-collector tell the scientist?
5. What happened at the next station? 6. The scientist couldn't find the ticket anywhere, could he?
7. Why did the scientist want to find his ticket?

2 года назад

Предмет: Математика, автор: millo2000

представьте число 4 в виде дроби со знамителем 7

7 лет назад

Предмет: Алгебра, автор: lena270486w

упростить вырожение -0,25y×8b

7 лет назад