| A | B |
|---|
| chemical equation | shorter, easier way to show chemical reactions, using symbols instead of words |
| symbol | a one letter or two letter set of characters used to identify an element |
| chemical formula | combination of symbols that represent the elements in a compound |
| subscripts | show the number of atoms of an element in a molecule or the ratio of elements in a compound |
| reactants | materials you have at the beginning |
| coefficient | number placed in front of a chemical formula telling #molecules |
| synthesis reaction | when two or more substances combine to make a more complex substance |
| decomposition reaction | process that breaks down compounds into simpler products |
| single replacement reaction | when one element replaces another in a compound, |
| double replacement reaction | when two elements in different compounds trade places |
| products | What you produce or end up with at the end of a reaction |
| arrow | points toward the products and represents yield in a reaction |
| double arrow pointing opposite directions | reaction is reversible |
