Mark the statement as true or false. All of the proposed ideas by Dalton, Thomson, and Rutherford are still used in the Modern Theory of the Atom.

true

false

Which is the layer underground where all empty spaces are filled with a combination of air and water ?

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.

Which class of molecules functions as chemical signals? hormones water carbohydrates proteins