What volume of 10M sulfuric acid is needed to create 2L solution of
7.5M?

Which of the following statements is true? a. elements in the last period are radioactive. b. atomic weight is the same as atomic mass. c. elements in the same group have the same number of electron shells. d. atomic number equals the number of neutrons in the nucleus of an atom.

In which phase(s) do the molecules take the shape of the container?

What is the polyatamic ion of thiosulfate