1)получите медь получения металлов из руды, напишите уравнения реакций химических свойств меди (4 и более уравнений).

2)опишите щелочные металлы (Na) 1.положение в п.с. 2. нахождение в природе 3.физические свойства 4. химические свойства 5. получение и применение. ​

1) New York is the biggest city in the United States of America. 2) More than eight million people live and work in New York. 3) The first people in New York were the American Indians. 4) Many ships went from England to the colonies in North America. 5) Christopher Columbus was a seaman. 6) He sailed west from Europe. 7) Columbus brought to Spain some new plants. 8) Great Britain is an island, isn't it? 9) There were a lot of Spanish settlements in the South of North America. 10) A lot of European countries were interested in the New World.

To my mind life in a large city is more comfortable than in the country or in a small town. Cities have good transportation facilities with many buses, trains, taxes or even subways.  In cities, we can go and watch a play performed in a theatre or a film in a cinema or we can watch operas or musicals, go to a cafe or a club. In cities you  can find a job easier than it can do country people because the cities have more diverse professions. So in cities, people have more various job opportunities. Living in the metropolis also provides plentiful opportunities, not only in career but also in studies.
There are a lot of different kinds of educational establishments. In the country, it is hard to find the book they want to read, or the film they want to watch. They do not have luxurious shops to buy different clothes but there are many big shopping centers in  large cities.  If you are ill you can go to a hospital with modern technological devices. To conclude, the city provides people with more optimal living conditions than the village. That's why most people live in cities and with every passing year more and more people living in the country leave their villages and move to cities.