Question

Keywords
1.)Chemical change
2.)Chemical reaction
3.)Crystallisation
4.)Galvanisation
5.)Physical change
6.)Rusting

I want short definition if you gave me all so I will make you branlist
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Answer 1

$\underline\mathsf\color{red}{Chemical\: Change}$:-

Chemical changes occur when a substance combines with another to form a new substance.

$\underline\mathsf\color{red}{Chemical\: Reaction}$:-

A chemical reaction is a process in which one or more substances, also called reactants, are converted to one or more different substances, known as products.

$\underline\mathsf\color{red}{Crystallization}$:-

The process of atoms or molecules arranging into a well-defined, rigid crystal lattice in order to minimize their energetic state.

$\underline\mathsf\color{red}{Galvanization}$:-

The process of applying a protective zinc coating to iron or steel, to prevent rusting.

$\underline\mathsf\color{red}{Physical\: Change}$:-

Physical changes are changes affecting the form of a chemical substance, but not its chemical composition.

$\underline\mathsf\color{red}{Rusting}$:-

Rusting is an oxidation reaction. The iron reacts with water and oxygen to form hydrated iron oxide, which we see as rust. This prevents the metal below from coming into contact with oxygen.