Naming

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  1. 4. reaction A reaction that ABSORBS energy in the form of heat
  2. 5. reaction a reaction in which a single compound breaks down to form two or more simpler substances
  3. 8. A substance made up of atoms of two or more different elements joined by chemical bonds
  4. 10. A group of atoms bonded together
  5. 11. replacement reaction a chemical change in which one element replaces a second element in a compound
  6. 14. 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.
  7. 16. equation chemical equation with the same number of atoms of each element on both sides of the equation
  8. 19. bond Formed when one or more electrons are transferred from one atom to another
  9. 20. A substance produced in a chemical reaction
  10. 21. a word, letter, or number placed before another.
  11. 22. A word or letter placed after the root.
  12. 23. compound a chemical compound formed by the sharing of electrons
Down
  1. 1. reaction A reaction that releases energy in the form of heat
  2. 2. bond A chemical bond that involves sharing a pair of electrons between atoms in a molecule
  3. 3. word main part of a word; prefixes and suffixes are added to this word
  4. 6. equation A representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products
  5. 7. A number written slightly below and to the right of a chemical symbol that shows how many atoms of an element are in a compound.
  6. 9. ion an ion made of two or more atoms
  7. 11. reaction a reaction in which two or more substances combine to form a new compound
  8. 12. A chemical substance that is present at the start of a chemical reaction
  9. 13. of Conservation of Mass the law that states that mass cannot be created or destroyed in ordinary chemical and physical changes
  10. 15. energy A form of potential energy that is stored in chemical bonds between atoms.
  11. 17. replacement reaction a chemical change that involves an exchange of positive ions between two compounds
  12. 18. compound a compound composed of positive and negative ions