V lít dung dịch HCl có pH=3 a) Cần bớt thể tích nước bằng bao nhiêu v để thu được dung dịch có pH=2
b) Cần thêm thể tích nước bằng bao nhiêu v để thu được dung dịch có pH=4

Which of the following statements about acidic water is true? a. acid has no effect on the h,o molecules. b. the solution contains a larger number of oh ions than h,o ions. c. the solution contains a larger number of h,o ions than qh ions. d. the solution contains an equal number of h,o ions and oh ions. none of the above e.

Skills of homo sapiens were found an excavation. the skulls were preserved because the bodies were frozen. so, these fossils are (blank) fossils.the image shows the evolution of skulls beginning 2 to 3 million years ago. based on the image, modern human skulls(blank) ape skulls.

What statement goes against the kinetic theory of gases