Stirol+KMnO4+H2O= Tenglashtiring va koeffisentlarni yozing.

1)Benzol+atsetilen 2)Alkadienlar polimerlanish 3)etilenglikol+Cu(OH)2 4) 1mol tarmoqlangan alkilbromit+5mol tarmoqlangan alkilbromit+6Na=6NaBr 5) Glitsin+ fenilalanin+ alanin

Kelasi o‘quv yilidan boshlab, fanlar majmuasida chet tili birinchi fan sifatida belgilangan ta’lim yo‘nalishlariga hujjat topshirish uchun xorijiy tilni bilish darajasini tasdiqlovchi milliy yoki xalqaro sertifikat talab etiladi.
Did you know that reading articles regularly can significantly improve your SAT score? Here's why: 📚 1. Boost Your Vocabulary: Articles expose you to diverse words and phrases that often appear in SAT Reading and Writing sections.
For many environmentalists, the world seems to be getting worse. They have developed a hit-list of our main fears: that natural resources are running out; that the population is ever growing, leaving less and less to eat; that species are becoming extinct in vast numbers, and that the planet’s air and water are becoming ever more polluted. But a quick look at the facts shows a different picture. First, energy and other natural resources have become more abundant, not less so, since the book ‘The limits to Growth’ was published in 1972 by a group of scientists. Second, more food is now produced per head of the world’s population than at any time in history. Fewer people are starving. Third, although species are indeed becoming extinct...
You don’t need a sat nav to drive to Oymyakon. From Yakutsk, you cross the Lena River and simply follow the M56 almost all of the way before taking a left at Tumor for the final few kilometers. The journey takes two days of hard driving; two days of glistening landscapes, frozen rivers and untouched snow; two days of endless forest and breathtaking beauty; two days to penetrate the heart of Siberia and reach the coldest inhabited place on Earth. The beauty surprised me. Siberia isn’t known for its pleasant appearance. It’s always billed as a place of hardship. But for hour after hour, the wintry wonderland was bathed in a crisp, clean sunshine, presenting a continuous panorama of conifer trees wreathed in silence and snow.
Nikel (II) gidroksid – yashil rangli gidroksid Kimyoviy formula: Ni(OH)₂ Tashqi ko‘rinishi: Och yashil rangli cho‘kma

Odatda fast-food brendlari o‘z mahsulotlarini mukammal, yangi, ishtaha ochuvchi qilib ko‘rsatishga harakat qilishadi. Burger King esa bu qoidani buzib, 2020-yilda o‘zining mog‘or bosgan Whopper burgerini reklama qilgandi.