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найти массу ортофосфатной кислоты необходимой для нейтрализации 12 г натрий гидрокида
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Предмет:
Химия -
Автор:
winstonbmbr - 5 лет назад
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Ответы 1
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H3PO4+3NaOH=Na3PO4+3H2On(NaOH)=m/M=12г/40г/моль=0,3 мольn(H3PO4)=1/3n(NaOH)=0.1 мольm(H3PO4)=n*M=0.1моль*98г/моль=9,8 г(*n-ню, количество вещества)
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Автор:
music man - 5 лет назад
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0
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Определите способ словообразования
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Б) белочка
В) винодел
Г) пригород-
Предмет:
Русский язык -
Автор:
isabellanbbg - 5 лет назад
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Ответов:
1 -
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Прочитайте текст и выберите правильный ответ.
My friend Masha and her family
My name is Olga. I have got friends from Great Britain, from Africa and from America. But I love my friend from Russia. Her name is Masha. She has got a family. She has got a mother, a father, a sister and two brothers. Her mother is a doctor. Her name is Lisa. She is thirty-two.She is from Russia. She loves her family. Her father is an engineer. His name is Oleg. He is not from Russia, he is from Great Britain. His mother and his father are from Great Britain. They are pilots! Oleg likes to play with his daughter and his two sons. Oleg loves his family. Masha and I are pupils. We are eight. We are from Russia. We are friends. We like to play. We play with her dog and her cat. We don’t play with her brothers. They play computer games. They are Misha and Sasha, they are ten. They want to be engineers but we don’t want to be engineers. Mary loves her mother and she wants to be a doctor. I want to be a doctor too. My father, my mother, my grandmother and my aunt are doctors
Olga and Masha are…. . a)from Great Britain b)sisters c)pupils
Olga has got… . a)friends from Africa b)a cat and a dog c)two brothers
… from Great Britain. a)Lisa b)Oleg c)Masha
Masha hasn’t got … . a)a sister b)a brother c) a cat
Masha has got a father. He likes to play…. . a)computer games b)with his mother and father c)with his daughter and his sons
Olga and Masha want to be…. a)doctors b)pupils c)engineers
Соотнесите видовременные формы глагола и их название.
1. Подлеж. + V, Vs a. Present Continuous Tense
2. Подлеж. + Ved, V2 b. Future Simple Tense
3. Подлеж. + will + V c. Present Perfect Tense
4. Подлеж. + Have/Has + Ved/V3 d. Past Simple Tense
5. Подлеж. + am/is/are + Ving e. Present Simple Tense
Напишите даты.
May 4th _____________________________________________
June 27th ____________________________________________
September 13th _______________________________________
January 8th __________________________________________
Выберите правильный вариант.
This new video is amazing / amazed! I love it!
He is interesting / interested in football and tennis.
That article was bored / boring for me.
Working ten hours a day is really tiring / tired.
She found your behavior shocking / shocked.
Соотнесите краткие и полные формы фраз.
1. TLTR a. Australia
2. LOL b. I have a comment
3. Oz c. Bye-Bye for now
4. ? d. Too long to read
5. TGTBT e. I don’t know
6. IMAO f. Little
7. ! g. Laughing out loud
8. BBFN h. Rolling on the floor laughing
9. LIL i. I have a question
10. ROFL j. Too good to be true
11. IDK k. In My Arrogant Opinion
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Предмет:
Английский язык -
Автор:
heathernuwi - 5 лет назад
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Ответов:
1 -
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sin2a-(sina+cos)^2............ .
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Предмет:
Алгебра -
Автор:
bailee2mlh - 5 лет назад
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Ответов:
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Составьте предложение i like a would peach
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Предмет:
Английский язык -
Автор:
logan959 - 5 лет назад
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Ответов:
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