Discover how acids react with metals to produce salts and hydrogen. Learn about the reactivity of metals in this KS3 chemistry guide from BBC Bitesize.

Sodium thiosulfate with acid Sodium thiosulfate reacts with dilute hydrochloric acid to produce sodium chloride, water, sulfur dioxide and sulfur.

In bulk, sodium is a silvery metal, a soft solid at room temperature. If it comes in contact with water, it produces sodium hydroxide and hydrogen. Potassium reacts even more vigorously.

Drop a chunk of sodium metal into water, and you'll see an incredibly violent reaction take place. But what's the quantum reason for it?

Like all alkali metals, sodium has one free electron that can react with other elements. Normally, this electron is far from the atom’s 10 other electrons, which reside closer to sodium’s nucleus.

Fuel cells that react liquid sodium metal with air could be the power source required to give electric airplanes much longer ranges, a new paper has proposed. The idea has yet to leave the ...