cho 34 gma hỗn hợp MnO2 và KMnO4 tác dụng với dung dịch HCL đặc dư thu được 9.52 lít khí CL2( đkct) tính phần trăm khối lượng mỗi chất trong hỗn hợp ban đầu

Which is true of transition metals when moving from left to right on the periodic table? the d sublevels are not filled across the period. the cation radii become larger across the period. atomic radii increase slightly and then start to decrease. atomic radii decrease slightly and then start to increase. o

Which of the following did jj thompson discover about atoms? a)an atom has an internal structure. b) atoms are tiny indivisible particles. c)electrons orbit the nucleus of an atom. d) the nucleus of an atom contains protons and neutrons.

What term is missing from the central region that describes hypotheses, theories, and laws? popular predictable mathematical falsifiable