Chemistry Crossword Puzzle

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Across
  1. 3. The type of chemical that neutralizes an acid. (both words required)
  2. 6. The rays that come highest in the Electromagnetic Spectrum and have a wavelength of 0.01 to 0.1 Ã…ngstrom .
  3. 7. An SI unit of measurement that represents the amount of a substance that contains the same number of particles as there are atoms in 12 grams of pure carbon-12.
  4. 10. A reaction where two or more reactants combine to form a single product .(Other name of composition reaction)
  5. 11. The substance that donates a proton in a chemical reaction.
  6. 12. The newly approved name of the 118th Element or Unniloctium
  7. 14. The Bond formed when a non-metal which has 4 valence electrons reacts and obtains
  8. 15. A type of reaction in which a single compound breaks down into two or more elements or compounds.
Down
  1. 1. The Scientist who proposed the theory of stationary orbits and electron engery jumping theory
  2. 2. A substance that speeds up a chemical reaction without being consumed.
  3. 4. The process where a liquid becomes a gas below its boiling point.
  4. 5. The outermost energy shell of an atom.
  5. 8. The chemical formula for methane.
  6. 9. A chemical reaction in which heat is absorbed from the surroundings.
  7. 13. The chemical symbol for sodium.
  8. 16. The chemical symbol for calcium.
  9. 17. A measure of acidity or alkalinity or the measure of the hydrogen ion concentration in a substance