Tính khối lượng mol(M) của các chất sau: H2SO4, Ca(OH)2, Fe2(SO4)3,HCl, CaCO3, Al(NO3)3, Na3PO4, AgNO3, CuO, CaSO4

In an investigation that uses the scientific method, which step immediately follows making a hypothesis? o summarizing the results o asking a question o making observations designing an experiment mark this and retum save and exit next submit

What is the value of keq for the reaction expressed in scientific notation?

What happens to the concentration of hydronium ions as the ph of a solution increases? a. hydronium ion concentration stays the same b. hydronium ion concentration decreases c. hydronium ion concentration increases