Trong 1ml dung dịch HX a mol/l có 5,4×10¹⁹ phân tử HX; 6×10¹⁸ ion X⁻. Tính a

What’s the scientific notation for the number 6,840,000,000

What is the correct lewis structure for chloroform chcl3

In the cathode ray tube experiment, j. j. thomson passed an electric current through different gases inside a cathode ray tube in the presence of an electric field. in which two ways did this experiment change scientists’ understanding of the atom?