An addition reaction is a reaction type where a molecule combines with another molecule to form one molecule. This is a unique type of reaction since no other product is being formed by this reaction only that one large molecule. An example is the addition of a hydrohalic acid to an alkene to yield a corresponding haloalkane.
Minerals naturally occur.
HClO, perchloric acid is a weak acid. Unlike strong acids like HCl or H2SO4 it not dissociate completely but partially such that an equilibrium exists between the dissociated ions and the undissociated acid. The equilibrium is as shown below:
HClO + H2O ↔ H3O⁺ + ClO⁻
Since HClO is a weak acid, the reverse reaction is favored over the forward reaction. Thus apart from water, HClO will be present in large amounts.
CAESIUM is the most reactive metal............
The powder catches fire. The rest of the choices pertains to physical changes on the powder. When the powder catches fire a chemical change happens. For example, if the powder is organic, carbon dioxide and water will result during the combustion.
