Предмет: Химия, автор: RASSPUTIN

допишмте формулу реакций CaO+HNO3-...

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Автор ответа: kristinabobkova21

0

СаО+2HNO3=Ca(NO3)2+H2O
чтобы уровнять реакцию перед HNO3 ставим 2

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Прочитайте текст. Определите, какие из приведённых утверждений соответствуют содержанию текста (1 – True), какие не соответствуют (2 – False) и о чём в тексте не сказано, то есть на основании текста нельзя дать ни положительного, ни отрицательного ответа (3 – Not stated). В поле ответа запишите одну цифру, которая соответствует номеру правильного ответа.

Our lives today would be very different if Thomas Edison had never lived. Born in 1847, Edison became the most active of all inventors in the late 19th and early 20th centuries. His inventions influenced life all around the world.
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