Unit 7.2 Chemical Reactions and Energy

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Across
  1. 3. Individuals or groups who have a vested interest in a particular project or decision
  2. 5. Chemical reaction that needs a constant input of energy to continue because it takes more energy to break bonds in the reactants than is released when new bonds form in the products.
  3. 6. Law stating that energy cannot be created or destroyed in chemical reactions.
  4. 7. An apparatus in which environmental conditions, such as temperature and humidity, can be controlled
  5. 8. The series of effects that result from a single action or decision
  6. 9. Process in which some substances, called reactants, change chemically into different substances, called products
  7. 10. Change in matter that occurs when matter changes chemically into an entirely different substance with different chemical properties.
  8. 12. To make something as effective as possible
  9. 13. The relocation of energy from one place to another, usually in a different form.
  10. 15. substance that starts a chemical reaction
  11. 16. Factors that limit or restrict what can be done or achieved
  12. 18. A set of standards or rules used to evaluate or judge something
  13. 20. Chemical reaction that releases energy because it takes less energy to break bonds in the reactants than is released when new bonds form in the product.
  14. 21. Transfer of thermal energy between objects that have different temperatures.
  15. 22. Change in one or more of matter’s physical properties.
Down
  1. 1. The compromises or sacrifices made when choosing between two or more options
  2. 2. preliminary version of a product or a system used for testing and evaluation
  3. 4. Law stating that matter cannot be created or destroyed in chemical reactions.
  4. 11. Energy Total kinetic energy of all the atoms that make up an object.
  5. 14. Best or ideal
  6. 17. Average kinetic energy of particles of matter.
  7. 19. Substance that is produced in a chemical reaction.