You should have noticed that the Styrofoam ball rolled slightly towards the rod and then appeared to be lifted above the pan. Which type of force explains why the rod was able to lift the Styrofoam ball? -static electricity

-gravity

-magnetism

-electromagnetism

State the formula for density in words and mathematical symbols

For each of the following types of reactions, write a general reaction formula in the symbolic form—for example, a + b → ab. single-displacement double-displacement synthesis decomposition

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.