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changes in matter
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Term | Definition |
---|---|
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. |