Across
- 2. Element or compound that cannot be broken down into simpler components and maintain the properties of the original substance
- 5. The starting substances in a chemical reaction.
- 6. Vertical columns in the periodic table
- 7. The energy required to raise the temperature of 1 gram of a substance by 1 degree
- 9. ion A group of atoms with a positive or negative charge
- 11. The new substances produced by a chemical reaction.
- 12. A combination of symbols and subscripts that tells which elements are in a compound and their ratios.
- 15. The sum of the kinetic and potential energy of the particles in an object
- 16. Energy a moving object has because of its motion
- 20. The transfer of energy from a higher temperature to a lower temperature
- 21. A chemical reaction in which energy is released.
Down
- 1. Compound that has water chemically attached to its ions.
- 3. Transfer of thermal energy by collisions of particles (CONTACT)
- 4. A neutral particle that forms as a result of electron sharing
- 8. Elements are arranged by increasing atomic number and by changes in properties
- 10. A positive or a negative number assigned to an element to show its combining ability in a compound
- 12. The attraction that forms between atoms when they share electrons
- 13. A chemical reaction in which energy is absorbed.
- 14. Horizontal columns in the periodic table
- 17. The average kinetic energy of the particles of a substance
- 18. Transfer of thermal energy in a fluid from one place to another
- 19. The force of attraction between opposite charges of the ions in an ionic compound
- 22. Transfer of thermal energy by electromagnetic waves