Вопрос № 151057 - Английский язык
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Henry Cavendish was born in 1731 and died in 1810. He was an English nobleman who did scientific experiments as a hobby. In 1781 he made the important discovery that water is not an element but a compound of the gases we now call hydrogen and oxygen. He described his experiments to the Royal Society in 1785.
His method was new. He showed that if electric sparks are passed through a mixture of hydrogen and oxygen the two gases combine explosively and form water. This was a dangerous experiment. Cavendish did his experiment safely;
he wisely used a strong brass container for the gases. He also passed electric sparks through air and found that gases which readily dissolve in water form acids. We explain this reaction today as follows: oxygen and nitrogen combine and form oxides of nitrogen.
Cavendish also noticed that air contained a small proportion of a gas which did not combine with any other gas even if we pass electric sparks through it for a long time. Now we think that this gas was probably argon, one of the inert gases. It was rediscovered many years later.
Henry Cavendish was born in 1731 and died in 1810. He was an English nobleman who did scientific experiments as a hobby. In 1781 he made the important discovery that water is not an element but a compound of the gases we now call hydrogen and oxygen. He described his experiments to the Royal Society in 1785.
His method was new. He showed that if electric sparks are passed through a mixture of hydrogen and oxygen the two gases combine explosively and form water. This was a dangerous experiment. Cavendish did his experiment safely;
he wisely used a strong brass container for the gases. He also passed electric sparks through air and found that gases which readily dissolve in water form acids. We explain this reaction today as follows: oxygen and nitrogen combine and form oxides of nitrogen.
Cavendish also noticed that air contained a small proportion of a gas which did not combine with any other gas even if we pass electric sparks through it for a long time. Now we think that this gas was probably argon, one of the inert gases. It was rediscovered many years later.
Вопрос задал(а): Анонимный пользователь, 25 Сентябрь 2017 в 08:04
На вопрос ответил(а): Бунакова Мария, 25 Сентябрь 2017 в 08:04
На вопрос ответил(а): Бунакова Мария, 25 Сентябрь 2017 в 08:04
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Reading is important. People who don’t read or who read carelessly make mistakes that can hurt others as well as themselves.
Besides being important, reading is fun. In books you can travel all over the world and visit interesting people. You can go back in time, too, or ahead into the future.
Books are friends who are always willing to talk to you.
You must handle books and magazines carefully with clean hands. You must not mark books or magazines that do not belong to you. You must never cut or tear a library book or a textbook.
Don't turn down corners of pages. You must use a bookmark to keep your place.
Reading is important. People who don’t read or who read carelessly make mistakes that can hurt others as well as themselves.
Besides being important, reading is fun. In books you can travel all over the world and visit interesting people. You can go back in time, too, or ahead into the future.
Books are friends who are always willing to talk to you.
You must handle books and magazines carefully with clean hands. You must not mark books or magazines that do not belong to you. You must never cut or tear a library book or a textbook.
Don't turn down corners of pages. You must use a bookmark to keep your place.
Reading is not important nowadays.
Turn down corners of pages if you want.
Books are important but they are dull.
Books are friends who are ready to talk to you.
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We were to meet at seven, but I _____ come here in time.
We were to meet at seven, but I _____ come here in time.
may not
can't
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