Crossword 3 by Remi

Edit Answers
1234567891011121314151617181920
Across
  1. 3. _____________________ theory states that when suitable particles of the reactant hit each other, only a certain amount of collisions result in a perceptible or notable change.
  2. 5. The topic of chemistry concerned with the rates (speed) of chemical reactions.
  3. 10. A quantity that expresses heat and cold. It is the manifestation of thermal energy, present in all matter, due to the kinetic energy of particles.
  4. 12. The reaction ______ is the speed at which a chemical reaction takes place.
  5. 14. Chemical _________________ is the process or effect of simplifying a single chemical entity into two or more fragments.
  6. 16. Substances consumed in the course of a chemical reaction.
  7. 17. A small localized object to which can be ascribed several physical or chemical properties such as volume, density or mass.
  8. 18. The atoms in molecules of this type of solids are arranged randomly. It literally means 'without shape'.
  9. 19. A chemical that lowers the activation energy of a reaction, thereby speeding it up without actually being changed by it
  10. 20. An electrically neutral group of two or more atoms held together by chemical bonds.
Down
  1. 1. a non-toxic brittle metal, not very useful. When it is 10 degrees above the temperature of this room, it will melt.
  2. 2. one of the four fundamental states of matter (the others being liquid, gas and plasma).
  3. 4. A scientific instrument used to separate and measure spectral components of a physical phenomenon.
  4. 6. The ___________________energy of an object is the energy that it possesses due to its motion. It is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity.
  5. 7. One of the two known elements that are liquid at room temperature. The other is mercury.
  6. 8. The species formed from chemical reactions.
  7. 9. The atoms in molecules of this type of solids are arranged in an orderly, predictable way
  8. 11. A substance or compound added to a system to cause a chemical reaction.
  9. 13. A state of decreased physiological activity in an animal, usually by a reduced body temperature and metabolic rate.
  10. 15. A measure of the randomness of a system.