Предмет: Химия, автор: cattt5

СРОЧНО!! ПОЖАЛУЙСТА!! Рассчитайте объем (дм", н. у.) водорода, который выделится при взаимодействии кальция массой 80 г с водой​​

Ответы

Автор ответа: unezhewaoxnw6u
0

Ответ:

Объяснение:

80г                                            хл

Ca + 2H2O = Ca(OH)2 + H2↑

40г/моль                               22,4л/моль

(80*22,4)/40=44,8л или 44,8дм³

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Once upon a time there lived an old king of Britain. His name was Lear. He had three
daughters: Goneril, Regan and Cordelia. One day King Lear called his daughters and said to
them: "I am very old and tired. I cannot be the king of Britain any more. I want to divide the
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Goneril and Regan were not good daughters. They did not love their father. But they
were very greedy. They wanted to become queens very much. They were glad to hear that
their father wanted to divide his country into three parts. They only thought how to get the
larger and better part of the country. So Goneril said:
"Dear Father, I love you very much. I love you more than my eyes, more than my
beauty, more than my life. No child loves his father more than I love you."
Regan said the same, but in different words.
King Lear was very glad. Then he asked his youngest daughter Cordelia to speak.
She was his favourite daughter.
Cordelia knew that her sisters were bad daughters. She loved her father very much,
but she did not want to repeat the words of her sisters. So she said nothing. Only when King
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They are married. Don't they love their husbands? You are my father, and of course I love
you. But when I marry, I shall love my husband, too."
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