donkey

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Across
  1. 2. Chemical Reaction in which energy is primarily given off in the form of heat
  2. 4. Formed when one or more electrons are transferred from one atom to another
  3. 5. A change in matter that produces one or more new substances
  4. 9. (of a chemical reaction or compound) occurring or formed with absorption of heat
  5. 11. A number in front of a chemical formula in an equation that indicates how many molecules or atoms of each reactant and product are involved in a reaction.
  6. 12. A chemical bond that involves sharing a pair of electrons between atoms in a molecule
  7. 13. The elements or compounds produced by a chemical reaction.
Down
  1. 1. A change in a substance that does not involve a change in the identity of the substance
  2. 3. the force that holds two atoms together
  3. 6. the process by which one or more substances change to produce one or more different substances
  4. 7. A representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products
  5. 8. A starting material in a chemical reaction
  6. 10. a charged atom