What will form a basic solution in water?

A basic solution can be formed when a METAL OXIDE is dissolved in water.

Explanation:

pH is defined as the measure of the concentration of hydrogen ions in a solution. In the pH scale measurement of a solution, it can either be:

- acidic(a pH of less than 7),

- neutral( a pH of exactly 7) or

- basic (a pH more than 7).

Basic solutions contains more hydroxyl ions than hydrogen ion. It is an aqueous solution with a pH greater than 7. It can be formed when a METAL OXIDE is dissolved in water. Example of such metal oxide includes magnesium oxide which dissolves in water to form, an alkaline( basic) solution, magnesium hydroxide. I hope this helps, thanks.

it's c. elements are placed in rows based on how may valencies electrons have.

c-14 is carbon-14, or radiocarbon.   it is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8 neutrons.