Chemistry

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Across
  1. 3. the process of a substance changing from one state to another
  2. 4. positivly charged subatomic particles located in the nucleus of an atom
  3. 6. the part of the universe being studied in a chemical reaction
  4. 8. atoms of the same element that have different numbers of neutrons
  5. 9. the smallest unit of a chemical
  6. 12. the smallest amount of energy that can be emmited or absorbed as electromagnetic radiation
  7. 14. stateing that energy cannot be created nor destroyed, only transformed
  8. 16. the total heat content of a system
Down
  1. 1. a measure of how well a material conducts heat
  2. 2. a unit of energy used to measure heat
  3. 5. the number of protons in the nucleus of an atom, which determines the elements identity
  4. 6. a fundamental property of electrons that describes their intrinsic angular momentum
  5. 7. the movement of heat from one object or substance to another
  6. 10. the study of how heat is involved in chemical reactions
  7. 11. a fundamental constant used to describe the sizes of quanta in quantum mechanics
  8. 13. a pure substance consisting of only one type of atom
  9. 15. negatively charged subatomic particles found in atoms