Предмет: Химия, автор: Незлобин

уравнять реакции. 1)FeCl+Cl2--->FeCl3 2)Fe(OH)3-->Fe2O3+H2O 3)Ca(OH)2+Na3PO4-->Ca3(PO4)2+NaOH 4)NO2-->NO+O2 5)B2H6+O2--->B2O3+H2O 6_)C5H10+O2--->CO2+H2O 7)FeCl2+Cl2-->FeCl3 8)Al(OH)3-->Al2O3+H2O 9)P2O3+H2O-->H3PO3 10)Mn2O7-->MnO2+O2

Ответы

Автор ответа: Trombozit
0

FeCl+Cl2--->FeCl
2Fe(OH)3 = Fe2O3 + 3H2O3  
2Na3PO4 + 3Ca(OH)2 = 6NaOH + Ca3(PO4)2

NO2 = NO + O2

B2H6 + 3O2 = B2O3 + 3H2O
15O2 + 2C5H10 = 10H2O + 10CO2

2FeCl2(разб.) + Cl2 = 2FeCl3

2Al(OH)3 = Al2O3 + 3H2O

3H2O + P2O3 = 2H2PHO3
2Mn2O7 = 3O2 + 4MnO2 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Предмет: Английский язык, автор: aitmukhanamira
Task 1. Read short texts about animals and match them with animal names



1. It is the tallest animal on land. It can be found in grasslands or open woodlands. Their long necks help them to eat leaves from tall trees. It also has small horns on the top of their head. These horns help to protect their head in a fight.

A CAMEL



2. It the largest land animal. It only eats plants. It is very strong. It is the only mammal that cannot jump.

B GIRAFFE

3. It is meat-eating reptiles. It is cold-blooded. It spends most of their time in the water to hunt. It can swim fast making it easier to catch their prey.

C ELEPHANT



4. It lives under the sea. It sometimes comes out of the sea to grab things. It grabs apples to eat and a beach ball to play with. It grabs things with its long legs. It has 8 legs.



D OCTOPUS



5. It leaves in the desert of Africa and Asia. It has one or two humps. It cannot eat meat. It leaves a lot of leaves, thorns and bushes. It can go out without water for a long time. It is a very social and likes to great each other by blowing in each other’s faces.



E ALLIGATOR





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WRITING

Task 2. Write a post card to Alex about your house. The sample postcard will help you to write a reply. Don’t forget to answer Alex’s questions in writing.

You have to write NO LESS THAN 80 words.





Hello dear friend,

This is a postcard of my house. My house is not very big. There are only four rooms: kitchen, living room with dining zone and two bedrooms. Our living room is spacious. There is a modern sofa, a TV set, a carpet with Asian ornaments and a bookshelf with many books. In this room we have two big windows with beautiful curtains. The dining zone is designed for six people, but in my family we are four people. Can you send me the photo of your house? How big is it? How many rooms are there? what is your favorite room in your house? What do you have in this room? What do you do in your free time at home?

Love,

Alex



Criteria of assessment

Answer all questions in the postcard 1

No less than 8 topical vocabulary 1

No more than 3 grammar mistakes 1

No more than 3 spelling mistakes 1

Task completion (planning, no less than 80 words) 1







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