Предмет: Химия, автор: vadimzarvanskyi82

что из етого являетса химическими уравнениями реакцией обмена на фото

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Автор ответа: vikanika05062015
0

Ответ: реакции обмена - два сложных вещества обмениваются друг с другом своими составными частями. 

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Предмет: Английский язык, автор: rwx8jcm6td
Reading
Task 1. Read the text and choose the right explanation to the word.
People are very busy now and do not have much time to spare.
It is necessary to have hobbies or leisure activities to make life more interesting and exciting with the help of painting, computer programming, photography, fishing, gardening, cooking, dancing, learning languages, collecting something, etc. Everybody can choose his own way of spending time, either active or passive, which depends on his or her character and age.
Some people prefer doing sports: football, volleyball, basketball, mountain climbing, horse riding, karate, judo etc. There are many sports clubs, swimming pools, gyms and sport grounds for everybody who loves sports. Sport makes you healthy, strong and more sociable.
Travelling is also a good way to spend free time. Visiting new places, seeing sights and meeting new people is very exciting and relaxing. You can travel by car, by ship, by train, by plane or you can go hiking to the riverbank, to the forest or to the seashore. It is wonderful to put up a tent, make a fire and spend time in a picturesque place.
1. a hobby
A) something difficult; B) something interesting, every person like doing;
2. exciting
A) feelings of interest and enthusiasm B) talking to other people;
3. depend on
A) to communicate with people; B) to be under the influence of somebody or something;
4. sociable
A) very sad and unhappy; B) someone, who prefers talking to other people;
5. relaxing
A) spending time, resting or doing something enjoyable; B) working hard;
6. picturesque
A) very pretty or charming; B) something cold and wet;
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Предмет: Английский язык, автор: tgfg29
I Choose the right item:
1.Yesterday morning they … at 7 o’clock.
a) are getting up b) got up c) get up
2.She … books every evening.
a)reads b) read c) is reading
3)They … an exercise now.
a)wrote b) write c) are writing
4 The girl …with her friends now.
a) is skipping b) skip c) skipped
5 We … every day.
a) watched TV b) watch TV c) are watching
II Fill in the gaps:
1 Mary’s dress is … than Nancy’s one.
a) long b) longer c)the longest
2. The Everest is …mountain.
a) high b) higher c) the highest
3. The hare is … than the fox.
a) small b) smaller c) the smallest
4 The dog is a … animal.
a)clever b) cleverer c) the cleverest
5 I think that the elephant is … animal.
a) big b) bigger c) the biggest
III Write the verb in the Past Simple:
be-… come-… play-… have-… call-…
ask-… draw-… watch-… work-… make-…
IV Make a correct choice and fill in the gaps:
1 She watched TV at / on / in 8 o’clock.
2 They got up early at / in /on the morning.
3 We played hockey on / at / in winter.
4 He slept well at / in / on night.
V Fill in the gaps with: clever, loud, shy, strong, scared, tired
1. My brother is the best student in the class. He is very _______________ .
2. My father works 12 hours a day and often comes home very _______________ .
3. He never goes to the parties and often stays home because he is quiet _______________ .
4. This man has to carry big bags, fix cars and bikes. That's why he is very _______________ .
5. He often plays _______________ music and has problems with his neighbours.
6. She was alone in the dark wood and really _______________ .
VI Choise the correct answer
1. My brother _______________ at the hospital six days a week.
a. worked b. works

2. Steve is a policeman. He _______________ be polite and wear a uniform.
a. must b. may
3. There is _______________ sugar in the cake.
a. much b. many

4. Look! She _______________ the piano.
a. plays b. is playing
5. A dolphin is _______________ than a giraffe.
a. cleverer b. the cleverest