Chemistry

123456789101112131415161718
Across
  1. 1. - Substance with a pH below 7
  2. 3. - Biological catalyst
  3. 6. - Positively charged particle in an atom’s nucleus
  4. 9. - Particle with no charge in an atom’s nucleus
  5. 10. - Speeds up a chemical reaction without being consumed
  6. 12. - Substance with a pH above 7
  7. 14. - Atom or molecule with an electric charge
  8. 15. - State of balance in a reversible reaction
  9. 16. - Atoms of the same element with different numbers of neutrons
  10. 18. - Substance made of two or more elements
Down
  1. 1. - Smallest unit of an element
  2. 2. - Substance made of one type of atom
  3. 4. - Negatively charged particle in an atom
  4. 5. - Liquid in which a solute dissolves
  5. 6. - Scale to measure acidity or basicity
  6. 7. - Process that changes substances into new substances
  7. 8. - Group of atoms bonded together
  8. 11. - Homogeneous mixture of two or more substances
  9. 13. - Mixture of two or more metals
  10. 17. - Force that holds atoms together