Crossword Puzzle on Chemical Composition

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Across
  1. 1. The total number of moles of solute per litre of solution.
  2. 3. Any class of organic chemical made up of hydrogen and carbon.
  3. 5. A reaction that releases energy from the system to its surroundings.
  4. 8. An important measurement in chemistry that has the same name as a marsupial (type of animal).
  5. 11. Lowering the concentration of a solute in a solution by simply adding more solvent to the solution.
  6. 12. The result of the reaction.
  7. 15. The space taken up by an object.
  8. 16. A group of atoms bonded together.
  9. 17. The mass of an atom.
  10. 18. The amount of matter in an object.
  11. 20. The name of the scientist who found the constant for the amount of particles in a mole.
Down
  1. 2. The species present in a substance usually atoms, molecules, or a formula unit.
  2. 4. The quantity of solute present in a given quantity of solution.
  3. 6. The simplest whole number ratio of atoms present in a compound.
  4. 7. What occurs when two chemicals are mixed, referred to as a solvent and a solute.
  5. 9. Any thermodynamic process with an increase in the enthalpy H of the system.
  6. 10. The mass in grams of one mole of the compound.
  7. 13. A substance that undergoes change in a reaction.
  8. 14. A particle of matter that uniquely defines a chemical element.
  9. 19. The real physical matter of which a person or thing consists and which has a tangible, solid presence.