Предмет: Химия, автор: nikemaxair55780

Мне нужны расчёты в ответе к этому заданию

Приложения:

Ответы

Автор ответа: egormal2002

CuNO3=64+14+16*3=126
ω(Cu)=64/126*100%=50.79%
ω(N)=14/126*100%=11.11%
ω(O)=48/126*100%=38.1%

Автор ответа: Аноним

формула нитрата меди 2- Cu(NO3)2

Автор ответа: egormal2002

Упс

Автор ответа: egormal2002

Cu(NO3)2=64+14*2+16*6=188
ω(Cu)=64/188*100%=34%
ω(N)=28/188*100%=14,9%
ω(O)=96/188*100%=51,1%

Автор ответа: Аноним

Cu(NO3)2
w ( Cu) = 64/188= 0,34*100= 34,0%
w( N) =14*2/ 188 =0,149 *100= 14,9 %
w( O) = 16*5/188= 0,51*100=51,0%
Ответ :3

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Биология, автор: markagadzanan430

5. в чём выражается приспособленность животных к сезонным явлениям в природе? 1. Изучите материал параграфа. Пользуясь памяткой, приведённой выше, проведите сравнение водных и сухопутных животных, обитающих в вашей местности. Результаты сравне- ния представьте в виде таблицы. 2. Используя интернет-источники, научно-популяр- ную литературу, подготовьте сообщение о сезон- ных изменениях в жизни птиц, обитающих в вашем крае.

5 лет назад

Предмет: Английский язык, автор: vivdenkonasta

My name is Jane. I get up at seven o’clock in the morning. I have breakfast at half past seven with my parents and sister. I like eggs and a cup of tea for breakfast.

I go to school at eight o’clock. I like Maths and English. I have lunch at twelve o’clock. I eat sandwiches and a banana or an apple. I go home at two o’clock. I do my homework at five o’clock. I go to bed at nine o’clock.

Complete the sentences
Jane gets up at…
She has breakfast at…
She goes to school at…
Jane has lunch at…
She goes home at
Write true or false
Jane gets up at seven o’clock in the morning.
Jane likes apples for breakfast.
Jane has breakfast with her sister and brother.
Jane’s favourite school subjects are Maths and English.
Jane does her homework at five o’clock in the morning.
Jane usually goes to bed at nine o’clock.
Write what Jane usually eats and drinks.
Jane usually eats___________
Jane usually drinks_________

5 лет назад

Предмет: Английский язык, автор: Аноним

ответьте пж срочно даю 50 баллов нкжно прочитать текст по олимпиаде
текст: On the Move

(A) Dan and Sammy cannot believe that they have to move away from Florida. Florida is so awesome! They can play outside all day long – every day. It is almost always warm and sunny, and all of their friends live there. What will they do without Brendan, Bailey, John, Alexis, and Brian? They will never have such great friends again. Never!

(B) However, Dan and Sammy are very excited for their dad. He has a great new job. The only problem is that the job is in New Hampshire. Sammy was not even sure where this state was located. After learning that it is way up north near Canada, both boys did get a little excited about playing in the snow. Sammy has always wanted to learn to ski, and Dan thinks playing ice hockey sounds like fun.

(C) Dan and Sammy also like the location of New Hampshire. It is between Maine and Vermont and not far from Boston, Massachusetts. Quebec, Canada, borders this state on the north. Neither of the boys has ever visited this part of the country, so they are now looking forward to exploring a new area. If only their friends could come with them! Their parents have promised that they can visit their old friends over spring break and even go to Disney World. The boys think that moving to New Hampshire will not be so bad after all.

и нужно выполнить вот эти задания:

Answer the following questions:

Не забудьте проверить и сохранить свои ответы!

7. Which country besides the United States of America is mentioned in the text?

New Hampshire
Ответ можно сохранять несколько раз
8. Which American city is mentioned in the text?

Ответ
Ответ можно сохранять несколько раз
9. Of all the places mentioned in the text, which has the hottest climate?

Ответ
Ответ можно сохранять несколько раз
10. Dan and Sammy want to go to Disney World. Where is this amusement park located?

Выбрать
Ответ можно сохранять несколько раз