Across
- 4. measures reactant and product masses before and after chemical reactions.
- 6. the temperature and pressure at which the solid, liquid, and gas forms of a substance coexist.
- 10. ions are formed by gain or loss of an electron formation.
- 13. the quality, condition, or fact of being exact and accurate.
- 16. donates one proton per molecule, such as HCL and HCLO4.
- 17. a substance that increases concentration of OH- ions in solution.
- 19. has the highest ionization energy.
- 20. a substance that increases the concentration of hydrogen ions in an aqueous solution.
Down
- 1. donates more than one proton per molecule, such as H3PO4.
- 2. created the plum pudding model.
- 3. forces that hold molecules of a covalent compound.
- 5. the measure of the average kinetic energy of the particles in a sample of matter.
- 7. the study of how heat is converted to and from other forms of energy and how it affects matter.
- 8. the total amount of energy; movement.
- 9. the change in heat of the products from the reactants.
- 11. the quality or state of being correct or precise.
- 12. positively changed nucleus with electrons orbiting the nucleus.
- 14. how strongly an atom attracts electrons .
- 15. electrons orbit the nucleus in specific orbitals or shells of specific size and location.
- 18. a substance that speeds up a chemical reaction without itself undergoing any chemical change.