For instance, potassium can be replaced by cations such as calcium or hydrogen, and vice versa. The total number of cations a soil can hold--or its total negative charge--is the soil's cation exchange ...

Water molecules can break down into hydrogen ions and hydroxide ions. \(H_{2}O(l)\rightleftharpoons H^{+}(aq)+OH^{-}(aq)\) This is a reversible reaction. A small proportion of water molecules ...

Acidic and alkaline solutions can conduct electricity because they have ions that are free to carry charge. Look at the formulae of these acids. They all contain H + ions.

A team of scientists at the University of New South Wales' School of Chemistry have developed an organic material that is ...