Составьте уравнения химических реакций, с помощью которых можно осуществить цепочку превращения этан - этилен-этиловый спирт- ацетальдегий

слово  "расположить"  "проберется" разобрать по составу

расположите в порядке возрастания числа 0.4;3/4;3/8

you have received a letter from your english-speaking pen friend betty who writes .

All my friends prefer to wear jeans and t-shirts.The don`t like to wear suits,shirts or ties. As fro me, i like formal style butl  ofroid my friends wont undestand me.

What about you? what kind of clothes do you friends and you prefer ?are you satisfied with you style?What clothes would you like to buy?

Write her a letter and answer  her 3 questions .Write 100-120 words.Remember the rules of letter writing