GP3 Exam 1 Crossword

123456789101112131415161718
Across
  1. 2. A reaction which absorbs energy is called _____________.
  2. 4. When two or more simple substances combine to for a complex substance.
  3. 6. A substance that speeds up the rate of reaction without getting involved in the reaction itself.
  4. 7. The amount of energy required for colliding molecules to break their bonds and react is called the _____________ energy.
  5. 11. This factor increases the rate of reaction by increasing the number of molecules in a given volume.
  6. 12. This factor increases the rate of reaction by increasing the kinetic energy of the colliding molecules.
  7. 14. The number in a chemical equation that describes how many molecules of a reactant/product there are
  8. 17. _____________ theory explains that for molecules to react they need to collide with the correct orientation and sufficient energy.
  9. 18. A _________ replacement reaction is when two ionic compounds switch ions with each other.
Down
  1. 1. The Law of ___________ of Mass states that the mass of the reactants is equal to the mass of products in a chemical reaction.
  2. 3. An expression that uses symbols and formulas to represent a chemical reaction is called a chemical ______.
  3. 5. A ________ replacement reaction is when a free element replaces one of the elements in a compound
  4. 8. A reaction which releases energy is called ___________.
  5. 9. When a complex substance breaks down into two or more simpler substances
  6. 10. If you increase the ______ area of a reactant by grinding it into a powder, it will react faster.
  7. 13. when a substance acts to form new substances,this is called a chemical ____________.
  8. 15. The substances that result from a reaction
  9. 16. When a chemical equation has the same number of atoms on both sides it is called ____________.