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changes in matter

review for test

chemical change a change that results in a new substance being mede
physical change the exterior change that does not make a new substance
chemical properties a substance within something that its own identification
physical properties are detected by the five senses, like smell or color
synthesis Start with two things and then they are combined at the end.
decomposition Starts with one thing and then they are broken down into two things.
single replacement A single replacement is when two things are taken apart and only one of them are put back together with something else.
double replacement A double replacement is when two things are taken apart and both of them are put back together with something.
atom An atom is the thing that makes up everything.
molecule A molecule is the thong that an atom is held within. You can't have a molecule without an atom.
conservation of mass The mass of any one element at the begof a reaction will equal the mass.
Created by: countryboy02