как из ацетилена получить дихлорэтен??

Have you seen the old man in the closed down market Kicking up the paper with his worn out shoes In his eyes you see no pride And held loosely by his side, yesterday's paper telling yesterday's news How can you tell me you're lonely And say, for you, that the sun don't shine Let me take you by the hand And lead you through the streets of London I'll show you something to make you change your mind How Can you tell me.... In the all night cafe at a quarter past eleven Same old man sitting there on his own Looking at the world over the rim of his teacup Each tea lasts an hour and he goes home alone

Запиши числа 16,17,18 и 19 в виде суммы двух разных однозначных чисел. В каком случае невозможно выполнить задание?

записать выражением задачу В треугольнике ABC длина стороны AB равна 5см сторона BC длинее стороны AB на 8см а длина стороны AC меньше суммы длин сторон AB и BC на 6см найдите периметр треугольника

составьте ионое уравнение СaCL2+CuSo4