How is each element represented in the periodic table

If a solution is considered basic, then a) the hydroxide ion and hydronium ion concentrations are equal. b) the hydroxide ion concentration is less than the hydronium ion concentration. c) the hydronium ion concentration is greater than the hydroxide ion concentration. d) the hydroxide ion concentration is greater than the hydronium ion concentration.

Neils bohr believed that electrons orbited the nucleus in different energy levels, based on strong support from

If 1.8 l of water is added to 2.5l of a 7.0 m koh solution, what is the molarity of the new solution