Предмет: Химия, автор: lilybunch

Нужна помощь! Задание 1. 100 граммов воды насыщают сульфатом магния при 800С. Раствор охлаждают до 00С. Определите массу соли, выпавшей в осадок.
Задание 2. 200грамм воды насыщают хлоридом калия при 1000С. Раствор охлаждают до 00С. Определите массу соли, выпавшей в осадок

Ответы

Автор ответа: romabond2006

Ответ:

Задание 1:

В этом случае масса осажденной соли будет составлять примерно 60,6 г сульфата магния.

Задача 2:

В этом случае масса выпавшей в осадок соли составит примерно 167,2 г хлорида калия.

lilybunch: Можете написать подробнее способ решения?

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1) Choose the correct item.

1. Brendan has got a ....... brother. A double B twice C twin 2. What is your ....... name? A full B long C whole 3. What is the ....... date of your credit card? A end B last C expiry 4. Madrid is the ....... city of Spain. A big B capital C head 5. It’s my birthday ....... 5th August. A at B in C on 6. My parents ....... to Sochi tomorrow. A go B are going C going 7. Robert is very keen ....... windsurfing. A in B on C of 8. How ....... some pizza? A like B many C about 9. Tom ....... TV in the living room. A watchB is watching C are watching 10. Frank ....... his homework at the moment. A is making B is doing C does 11. We were afraid to swim in the ....... river. A polluted B deserted C clean 12. She ....... the house every day. A cleans B is cleaning C clean 13. A house is ...... expensive than a tent. A most B more C much 14. We usually ....... after school. A meet B meets C are meeting 15. They ....... the injured child to a safe place. A carries B carried C carrying 16. Did they ....... home early last night? A arrived B arrives C arrive 17. My parents ....... me money for my birthday. A gives B kept C gave 18. A lion is ...... than an elephant. A smaller B smallest C small 19. Harry usually ....... his boat on Saturdays. A drives B rides C sails 20. Wear your coat, scarf and gloves. It’s ....... cold. A freezing B boiling C pouring 21. I hate sushi. I ....... eat it. A never B always C often 22. Does he ....... history at school? A teaches B teach C teaching 23. We keep our car in the ....... . A station B garage C dungeon 24. Are you coming to the party......? Saturday? A on B at C in 25. June is the ....... month of the year. A sixth B six C sixteen

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26 Grendel lived in Finland. a)True b)False c)DS

27 The king’s knights couldn’t sail the boat. a)True b)False c)DS

28 Beowulf was a king’s knight. a)True b)False c)DS

29 One of Beowulf’s men killed the monster. a)True b)False c)DS

30 Beowulf went back to his country, became a king and he had two sons. a)True b)False c)DS

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