Предмет: Химия, автор: Nana11111

ПОЖАЛУЙСТА, ПОМОГИТЕ!
Составьте малекулярную формулу
w(Na)= 42,1%
w(O) = 39%
w(P) = 18,9%
БУДУ ОЧЕНЬ БЛАГОДАРНА!!

Ответы

Автор ответа: Estanislao
0
Ортофосфат натрия- Na3PO4
Молярная масса: 163,94 г/моль
Вот эта формула! если подсчитать равна w(Na)= 42,1%
w(O) = 39%
w(P) = 18,9%
Предыдущий вопрос
Следующий вопрос
Похожие вопросы
Предмет: Немецкий язык, автор: ДуанбекМариям
перевидите текст пж пж
1 год назад
Предмет: Қазақ тiлi, автор: маришка213
Помогите пожалуйста перевести казахский дают 20 баллов срочно
1 год назад
Предмет: Русский язык, автор: kulieva3
Составьте предложения по схеме: [О, ! ]. (О обозначает обращение)
1 год назад
Предмет: Английский язык, автор: maks01030790
Кто решить правильно тому дам 30 баллов
7 лет назад
Предмет: Английский язык, автор: dmyrzabekov37
ПОМАГИТЕ СРОЧНО ТОЛЬКО TRUE FALSE



Read the text and answer the questions.


The best place in the world to live


Vancouver is the third biggest city in Canada. It’s in the south west of the country and it has a population of 2.6 million. A recent study showed that it’s the best city in the world to live. The study looked at areas like weather, transport, education, healthcare, and safety. This study happens every year and Vancouver is usually number one.


We asked Vancouver resident Jacob Meyers if he agrees.


I’ve lived in Vancouver all my life. I work for an engineering company and I’ve travelled on business to many Canadian cities. Two years ago another company offered me a very good job in Montreal but I didn’t take it because I never want to leave my city. Let me tell you why not:


Vancouver is situated between the mountains and the Pacific Ocean. That means the summers aren’t too hot and the winters aren’t too cold. It also rains a lot, in summer and winter. Some people don’t like that but I do because our gardens and parks are always green and fresh. Every day I cycle or walk for an hour in a park and in Vancouver you’re never more than a few minutes from one.


I don’t feel frightened when I walk in Vancouver’s streets at night. Of course, Vancouver has a high population and there’s crime in every big city, but compared to the USA, for example, it’s quite safe.


But my favorite thing about Vancouver is its incredible mix of nationalities. I’ve got friends here from all over the world. And there’s an enormous variety of foreign food in the restaurants and markets. I’ve eaten wonderful dishes from China, India, Italy, Greece, and Japan and I haven’t been to any of these places.


Mark the sentences True, False or Not given


1)Two thousand, six hundred people live in the south west of Canada.


Not given

True

False

2)A study says that Vancouver is the best place for a city holiday.


False

Not given

True

3)Jacob was born in Vancouver.


False

True

Not given

4)There are some mountains between Vancouver and the ocean.


Not given

True

False

5)It often rains in summer in Vancouver.


False

Not given

True

6)Jacob has a big garden.


False

True

Not given

7)He lives an hour away from the nearest park.


Not given

True

False

8)He never walks in the streets at night.


True

Not given

False

9)Jacob can speak a lot of foreign languages.


True

False

Not given

10)He has been to Italy on holiday.


Not given

False

True
7 лет назад