Some compounds, like carbon dioxide, are gaseous at room temperature, while others are solid at room temperature. why is this?

This is a mixture that has the same composition throughout.

As you move from right to left on the periodic table the atomic radius fill in the blank

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.