Across
- 2. a reaction in which energy is released in the form of heat
- 3. ions can form an orderly, three dimensional arrangement called a ___
- 4. any change that alters the form or appearance of a substance but doesn't make the substance into another substance
- 6. tells you the ratio of elements in a compound
- 7. a reaction in which energy is absorbed
- 8. a neutral group of atoms joined by covalent bonds
Down
- 1. a solid that forms from solution during a chemical reaction is called a ___
- 3. the study of matter and how matter changes
- 5. a change in matter that produces one or more new substances
- 8. anything that has mass and takes up space