Предмет: Химия, автор: Karinakarnawila

12. Складіть формулу сполуки , що містить один атом Калію, один атом Мангану і чотири атоми Оксигену. Визначте відносну молекулярну масу сполуки та масову частку Мангану в ній

Ответы

Автор ответа: werhyta227

KMnO4 молекулярну масу порахуй сам заглянь в табличку там буде віднос

Интересные вопросы

Предмет: Английский язык, автор: valeria31439

СРОЧНО КТО ОТВЕТИТ ДАМ 70 БАЛЛОВ ОСТАЛОСЬ 20 МИНУТ !!!VOCABULARY
1 Match the definitions with the words from the box.
There are some you do not need to use.
boring boss busy
earn
customers
easy office staff
1 This means to get money for doing work.
2 These people work for a business.
3 When you have a job, this person tells you what
to do.
4 This means you're working hard and have lots
to do.
5 These people buy things in shops.
6 There are usually desks, phones and computers
in this place.
2 Choose the correct answer, A, B, C or D.
1 My mum builds roads and buildings.
She's
A a customer
B an engineer
C a factory worker
D a mechanic
2 My cousin's a famous.
photos of him.
difficult
A manager
B farmer.
C staff
D model
3 My aunt works in an Italian restaurant.
She's
A a cook
B a photographer
C a shop assistant
D an engineer
4 My brother works with cars. He's.
A a farmer
B a dentist
C a mechanic
People take
D an engineer
5 My sister helps the school football team.
She's
A a farmer
B a worker
C an actor
Da sports coach
6 Emily works with animals. She's
A an engineer
B a farmer.
C an artist
D a manager
7 My dad makes cars. He's,
A staff
B a factory worker
C a nurse
D a farmer
8 My uncle flies planes all over Europe.
He's,
A a factory worker
B a dentist
C a pilot
D a farmer
GRAMMAR
3 Choose the correct answer, A, B, C or D.
1 A: Did you listen to music last night?
B: Yes,
A I did
B I didn't.
C I don't
D I do
2 We cooked fish. We
A did
B don't
C didn't
D do
3 What time did you
A to start
B starts
C started
D start
4 A: Did you enjoy the party?
B: No,
A I did
B I didn't
C I don't
D I do
5 We
a mountain.
A do
B did
C didn't
D don't.
cook meat.
cooking?
climb a tree, we climbed.

1 год назад

Предмет: Алгебра, автор: andrijsa57

Подайте у вигляді суми одночленів: (3a - 1)(2a+7) СРОЧНО

1 год назад

Предмет: Английский язык, автор: farid222niftaliyev

MAKE IN PASSIVE VOICE//66. They gave us some books and magazines yesterday. 67. You advised him to stay at home 68. They asked him if he could. 70. This is the same article that they advised us to read. 71. I have been sent to help you. 72. They asked me to tell you what happened. 73. They told me to come exactly at five o'clock. 74.0 advised to engage in music. 75. They suggested him to consult a doctor. 76. When I was offered to go to the village, I didn't think about rest at all 77. They listened to the speaker very attentively. 78. Children like to be read to. 79. They talk a lot about this event. 80. Can he be trusted? 81. They never buy this book. They talked a lot about their 82.0 deeds. 83. As soon as the loads were ready, they sent someone for the car. 84. They never live in this house in winter. 85. I don't understand why people talk about this movie so much? 86.0 is a very honest person, you can trust him. 87. In our country, they take care of the elderly and children. 88. His speech at the meeting was so effective that everyone was talking about him afterwards. 89. In our country, children are provided with everything. 90. I have seen only a part of the article, the rest is still being printed. 91. As soon as all the material is ready, they will bring it to you. 92. When I came to my native village on vacation, they were starting to build a new club there. I believe that the construction will be finished now. 93. A lot of attention is paid to sports in our country. 94. Your exam papers are still being checked, so it is very difficult to talk about the results now. 95. When was the new building of Baku University built? 96. Didn't you understand the rules that were just explained to us? 97. If he does not come, this question will not be discussed. 98. Please find out if the tickets to the theater have already been sold? 99. Don't worry! Everything

1 год назад

Предмет: Алгебра, автор: mrdomashka24

сделайте 1-ый и 2-ой номера и ещё один любой

7 лет назад

Предмет: Кыргыз тили, автор: samiraedilbekova

Илик жондомосу катышкан суйломду белгиле
а)Удон китепканага келдим
б) Кочонун жээгине бак отургуздум
в) Катка жооп жаздым
г) Кийимди кийип эшикке чыктым

7 лет назад