Ольга Используем таблицу Менделеева. Находим атомную массу элемента и умножаем на количество атомов данного элемента в молекуле. Так для каждого входящего в молекулу элемента — затем суммируем.
Например: M(N2) = 2 * 14 = 28, т. к. атомная масса азота по таблице = 14
Задание
Развернуть задание
Complete the gaps (1 – 7) with the correct word formed from the words in bold.
Leonardo da Vinci
By now you have 1) …….. (PROBABLE) read The Da Vinci Code or seen the film. But who 2) …….. (EXACT) was Leonardo da Vinci? Well, he was born in 1452 in Italy. He is most 3) …….. (FAME) for his 4) …….. (PAINT), the Mona Lisa. Da Vinci was also an 5) …….. (INVENT) who designed a helicopter, a submarine and a parachute centuries before they were made. Leonardo thought that by understanding how each part of a machine worked, he could change them and then put them together in 6) …….. (DIFFER) ways. In this way he could improve 7) …….. (EXIST) machines or create new ones. He drew his ideas so well that 500 years later his sketches have been used to make perfect working models.
Leonardo da Vinci
By now you have 1) …….. (PROBABLE) read The Da Vinci Code or seen the film. But who 2) …….. (EXACT) was Leonardo da Vinci? Well, he was born in 1452 in Italy. He is most 3) …….. (FAME) for his 4) …….. (PAINT), the Mona Lisa. Da Vinci was also an 5) …….. (INVENT) who designed a helicopter, a submarine and a parachute centuries before they were made. Leonardo thought that by understanding how each part of a machine worked, he could change them and then put them together in 6) …….. (DIFFER) ways. In this way he could improve 7) …….. (EXIST) machines or create new ones. He drew his ideas so well that 500 years later his sketches have been used to make perfect working models.
Развернуть задание
Новое решение
Решение
Leonardo da Vinci
By now you have 1) PROBABLY (возможно) read The Da Vinci Code or seen the film. But who 2) EXACTLY (именно) was Leonardo da Vinci? Well, he was born in 1452 in Italy. He is most 3) FAMOUS (знаменит) for his 4) PAINTING (картиной), the Mona Lisa. Da Vinci was also an 5) INVENTOR (изобретателем) who designed a helicopter, a submarine and a parachute centuries before they were made. Leonardo thought that by understanding how each part of a machine worked, he could change them and then put them together in 6) DIFFERENT (разные) ways. In this way he could improve 7) EXISTING (существующие) machines or create new ones. He drew his ideas so well that 500 years later his sketches have been used to make perfect working models.
By now you have 1) PROBABLY (возможно) read The Da Vinci Code or seen the film. But who 2) EXACTLY (именно) was Leonardo da Vinci? Well, he was born in 1452 in Italy. He is most 3) FAMOUS (знаменит) for his 4) PAINTING (картиной), the Mona Lisa. Da Vinci was also an 5) INVENTOR (изобретателем) who designed a helicopter, a submarine and a parachute centuries before they were made. Leonardo thought that by understanding how each part of a machine worked, he could change them and then put them together in 6) DIFFERENT (разные) ways. In this way he could improve 7) EXISTING (существующие) machines or create new ones. He drew his ideas so well that 500 years later his sketches have been used to make perfect working models.
Leonardo da Vinci
By now you have 1) PROBABLY (возможно) read The Da Vinci Code or seen the film. But who 2) EXACTLY (именно) was Leonardo da Vinci? Well, he was born in 1452 in Italy. He is most 3) FAMOUS (знаменит) for his 4) PAINTING (картиной), the Mona Lisa. Da Vinci was also an 5) INVENTOR (изобретателем) who designed a helicopter, a submarine and a parachute centuries before they were made. Leonardo thought that by understanding how each part of a machine worked, he could change them and then put them together in 6) DIFFERENT (разные) ways. In this way he could improve 7) EXISTING (существующие) machines or create new ones. He drew his ideas so well that 500 years later his sketches have been used to make perfect working models.
By now you have 1) PROBABLY (возможно) read The Da Vinci Code or seen the film. But who 2) EXACTLY (именно) was Leonardo da Vinci? Well, he was born in 1452 in Italy. He is most 3) FAMOUS (знаменит) for his 4) PAINTING (картиной), the Mona Lisa. Da Vinci was also an 5) INVENTOR (изобретателем) who designed a helicopter, a submarine and a parachute centuries before they were made. Leonardo thought that by understanding how each part of a machine worked, he could change them and then put them together in 6) DIFFERENT (разные) ways. In this way he could improve 7) EXISTING (существующие) machines or create new ones. He drew his ideas so well that 500 years later his sketches have been used to make perfect working models.