Potassium nitrate (KNO 3 ... Six years later, in a more chemical account, British chemist J. W. Thomas included KNO 3 in an article about the action of hydrogen chloride gas on various metal salts. As ...

¹ To achieve this, I chose potassium metal as the strong base to remove a hydrogen molecule from glucose for facilitating the reaction. One late night during spring break, I was catching up on washing ...

Moist air reacts with potassium to form potassium oxide. This creates a layer over the surface of the metal. These observations show that the reactivity of these metals increases going down the group.