A catalyst is a chemical that increases the rate of a chemical reaction without itself being changed by the reaction. The fact that they aren't changed by participating in a reaction distinguishes catalysts from substrates, which are the reactants on which catalysts work. Enzymes catalyze biochemical reactions.
And a water molecule, this is called a dehydration synthesis. when 2 molecule combine, a water molecule leave.
Tsunamis are likely to originate in the pacific ocean
Gas particles lose their energy during collisions