напишите уравнение реакции присоединения бромоводорода к 2,3,3-трифторпентену-1

Какие боги и религиозные верования существовали у древних египтян ?

Заполните пропуски предлогами и наречными частцами,где это необходимо

I wonder whether they are coming ... half ... two or ... three. I've got three tickets ... the new film, but my daughter can't go. Would you like to join ... us. Please ask Peter whether he would like to join ... us ... lunch.Do you like usually have rye bread ... the meat course? Let's have meat and potatoes ... the second course and some ice-cream ... the sweet, shall we? Will you can the students...please? The examination begins ... ten minutes. Valeriy Klimov has just rung me... . He says he's coming ... a few minutes. I wouldn't like to begin the discussion ... him.Is your son...his first or second year from now.As I was going...home,a man came....and asked me whether the 12 bus would take him ... Red Square.Are you going ... the canteen...lunch or are you going to have a cup...tea...the office?

Легкая пружина с жесткостью k стоит вертикально на столе. С высоты H на нее падает небольшой шарик массой m. Какую максимальную скорость будет иметь шарик при своем движении вниз?

сочинить сказку по теме десятичные дроби не большую