Предмет: Химия, автор: SashaStereO

Al2(SO4)3+BaCl2 ->....., Na2SO4+KCl ->......, Fe2(SO4)3+NaOH->......, BaCl2+KOH->....., Na2CO3+H2SiO3->......, Na2CO3+HCl->....

Ответы

Автор ответа: lyubavasil
0
Al2(SO4)3+3BaCl2 ->3BaSO4+2AlCl3
 Na2SO4+KCl ->не идет
 Fe2(SO4)3+6NaOH->2Fe(OH)3+3Na2SO4
 BaCl2+KOH->не идет
 Na2CO3+H2SiO3->Na2SiO3+CO2+H2O
 Na2CO3+2HCl->2NaCl+CO2+H2O

Автор ответа: SashaStereO
0
А почему во втором и четвертом не идет?
Автор ответа: djumbera96
0
ой,не посмотрел
Автор ответа: djumbera96
0
соли с солями не идут
Автор ответа: djumbera96
0
в 4 все растворимы и нет смысла реакции
Автор ответа: djumbera96
0
1. al2(so4)3+3bacl2=3baso4(белый осадок)+2alcl3
2. Na2so4+2kcl=2nacl+k2so4
3.fe2(so4)3+6naoh=2fe(oh)3(красный осадок)+3na2so4
4. Bacl2+2koh=ba(oh)2+2kcl
5. Na2co3+h2sio3=na2sio3+co2+h2o
6. Na2co3+2hcl=2nacl+co2+h2o
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Read the text and mark the statement T (true), F (false) or DS (doesn’t say).





Are you planning a holiday? Then, why not visit Melbourne, Australia? Melbourne is the second biggest city in Australia. It’s a cosmopolitan city, full of history and heritage.

There are lots of things to see and do in Melbourne. You can admire modern works of art at the National Gallery of Victoria, or learn about the history of Australia at the Melbourne Museum. You can also see films from around the world at the Melbourne Film Festival. It takes place every summer and attracts more than 200,000 people.

For those interested in nature, Melbourne has got lots to offer. Melbourne Zoo is the oldest in Australia and has got more than 300 animal species. A three-hour drive from the city takes you to Grampians National Park, where you can see Australian animals, like the kangaroo and koala, in the wild. And at Melbourne Aquarium, next to the river Yarra, you can see many rare fish and aquatic animals. With millions of people of different nationalities living in Melbourne, you can try food from all over the world. Melbourne is famous for its Italian, Greek and Asian restaurants. Also, make sure you try the national dish of Australia – the delicious meat pie.

Melbourne is an exciting city with many attractions. It’s the perfect destination for a sightseeing holiday.





1 Melbourne is not the biggest city

in Australia. ........

2 You can see modern works of

art at the Melbourne Museum. ........

3 One hundred thousand people

visit the film festival every year. ........

4 Grampians National Park is in

the centre of the city. ........

5 People from many different

countries live in Melbourne. ........

6 People in Melbourne eat a lot

of meat. ........



пожалуйста​
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