Forbes contributors publish independent expert analyses and insights. The Universe is out there, waiting for you to discover it. Sometimes, we learn things early on in life, and simply accept that's ...

You remember the sodium demo from chemistry class: Just a small chunk of the pure metal dropped into water causes a great big flash and bang. You might even remember ...

Many of us gained our first appreciation for chemistry upon witnessing a high school teacher drop a chunk of sodium into a beakerful of water. You may think you know the explanation behind the ...

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 ...