1. Гексозы имеют одинаковую формулу С6Н12О6. С точки зрения строения молекулы эти вещества отличаются друг от друга:
1) числом гидроксильных групп
2) взаимным расположением заместителей при ассиметрических атомах углерода
3) строением углеродного скелета
4) расположением альдегидной группы в углеродной цепи

In which layer of earth do most earthauakes occur a_ inner core b_outer core c_mantle d_crust

Asample of ammonia reacts with oxygen as shown. 4nh3(g) + 5o2(g) 4no(g) + 6h2o(g) what is the limiting reactant if 4.0 g of nh3 react with 8.0 g of oxygen? o2 because it produces only 0.20 mol of no. nh3 because it produces only 0.20 mol of no. o2 because it produces two times less no than nh3. nh3 because it produces three times more no than o2.

Me i dont know what to do! the table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.