Предмет: Химия, автор: daryabarinova88

CHCOONa что это такое?

Ответы

Автор ответа: kristina098765

соль уксусной кислоты ацетат натрия только формула не правильно записана

Автор ответа: фатима40

СН3СООNa-ацетат натрия ,натриевая соль уксусной кислоты.

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ПОЖАЛУЙСТА ПОМОГИТЕ
1. Alexander Bell worked at inventing
a) radio-set b) tape-recorder c) telephone
2......
.......... was a Scottish engineer and inventor of the world's first working television system
a) John Logie Baird b) Benjamin Franklin c) Edward Jenner
3. Karl Benz produced the wold's first petrol-driven motorcar in ......... in 1885.
a) Italy b) Japan c) Germany
4. The Lumière brothers patented the cinematograph in
a) 1844 b) 1885 c) 1925
5. The phonograph, the motion picture camera, light bulb are .... inventions
a) Michael Faraday's b) Thomas Edison's c) William Gilbert's
6. In 1945 the Nobel Prize was given to Alexander Fleming for
a) solar cell b) penicillin c) telescope
7. The first Russsian's ...... was designed by P. Frez and E. Yakovlev.
a) camera b) electric cell c) automobile
8. ........ was an American inventor, salesman and janitor who invented the first commercially
successful portable electric vacuum cleaner.
a) James Murray Spangler b) Ian Wilmul c) Humphry Davy
9. .....
mathematician Charles Babbage designed a form of computer in the mid-1830s.
a) French b) German c) British
10. ...... was the first to use assembly line production for his Model T car in 1908.
a) Ernest Rutherford b) Henry Ford c) Robert Hooke
11. Nicéphore Niépce was a French inventor, now usually credited as the inventor of ....... and a pioneer
in that field,
a) photography b) airplane c) motorcar
12. Sergei Korolev designed the first artificial satellite in
a) 1947 b) 1957 c) 1970
13. Alexander Mozhaysky was aviation pioneer, researcher and designer of first
a) aeroplane b) steamship c) steam locomotive
14. Satori Kato was a
chemist and inventor of the first soluble instant coffee.
a) American b) Brazilian c) Japanese
15. Wilhelm Conrad Röntgen was a German physicist, who produced and detected electromagnetic
radiation in a wavelength range today that was known as ....... or Röntgen rays.
a) X-rays b) Y-rays c) Z-rays