chemical reactions vocab Flashcards
what is a catalyst?
a substance that increases the rate of a reaction but is not used up in the reaction
what is the collision theory?
the collision theory states that the particles involved in a chemical reaction must collide in order to react
combustion reaction
a reaction that involves oxygen and releases light and heat energy
concentrated acid
this refers to an acid solution with a high concentration of hydrogen ions
concentration
the number of active molecules in a set volume of solution
decomposition reaction
a reaction that involves the breakdown of a compound into simpler substances
dilute
a small number of active molecules (such as acid) in a solution
hydrocarbon
a molecule that contains only carbon and hydrogen atoms
monomer
a small molecule from which polymers are made
neutralisation reaction
a reaction in which an acid and a base combine to produce a metal, salt and water
oxidation reaction
a reaction that involves the combination of oxygen with a fuel or metal
polymer
a long-chain molecule formed by joining many smaller repeating molecules (monomers)
precipitate
an insoluble compound formed in a precipitation reaction
precipitation reaction
a reaction used to produce solid products from solutions of ionic substances
reaction rate
how fast or slow a reaction proceeds