Metals react differently. Some are very reactive and others are unreactive. Observations of reactions can be used to put metals into an order of reactivity. For example, copper is unreactive so it can ...

For example, when magnesium reacts with hydrochloric acid, the salt magnesium chloride is formed along with hydrogen gas. During the reaction the following observations would be made: bubbles of ...

image: Acids are reactive, with even weak acids like vinegar interacting with other materials to wow students. But strong acids can really put on a show. For example, aqua regia, or royal water, is a ...