Magnesium bromide= MgBr2
Potassium chloride= KCl
A common clasiffication of the chemical reactions is as combination (or synthesis), decomposiion, single replacement and double replacement. Knowing the reactants and products you can tell to which one of those four classifications a reaction pertains. When two reactants combine into a single product, it is a combination (syntheisis) reaction. When a single reactant yields two or more products, it is a decomposition reaction. When the cation of a single element, replaces the cation in a compound, it is a single replacement. When the cations of two different reactants exchange and end combined with the anions of the others compounds, it is a double replacement reaction.
