What is TRUE about the element Fluorine? It has the same number of protons, neutrons and electrons
It has more neutrons than electrons
It has a mass number of 9
It is an isotope
The atomic number is 19

An aqueous solution of potassium hydroxide is standardized by titration with a 0.194 m solution of hydrobromic acid. if 25.2 ml of base are required to neutralize 24.2 ml of the acid, what is the molarity of the potassium hydroxide solution? m potassium hydroxide

Asample of air with a volume of 2.20m3 at a pressure of 105 kpa and a temperature of 30c is cooled to 10c and the pressure is reduced to 75.0 kpa. what is the new volume? 6.9 1.34 2.56 43.0 2.88

What is the approximate vapor pressure when the gas condenses at 70 degrees celsius