decomposition
This is an oxidation-reduction reaction.
It is an eothermic type of reaction.
Your reaction is this...H3PO4 + 3KOH --> K3PO4 + 3H2OThis type of reaction is called a double replacement.Note: You didn't put a 4 on the oxygen on the phosphate group on the product side in your question. If it wasnt there the equation would not have been balanced so i put it in myself.
this is an exotermic reaction
6
neutralisation reaction
It is a neutralistion reaction.
Combustion reaction
decomposition reaction
This is an oxidation-reduction reaction.
It is an eothermic type of reaction.
This is an double-displacement reaction, in this case and acid-base reaction.
Synthesis
exothermic
single replacement
That is a synthesis reaction, also called a combination reaction.
Decomposition