Watch video ЕГЭ по химии 2017. Задание №27. online without registration, duration 06 minute 14 second in high hd quality. This video was added by user ЕГЭ и ОГЭ на 80-ballov. Годограф 04 March 2017, don't forget to share it with your friends and acquaintances, it has been viewed on our site 47 thousand once and liked it 654 people.