Unit 5: Reactions and Stoichiometry

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Across
  1. 7. a chemical compound that increases the concentration of hydrogen ions in an aqueous solution
  2. 9. the principle that states that the total amount of matter is constant during any chemical or physical change, matter is neither created nor destroyed
  3. 11. a chemical reaction in which each side of the equation has the same number of atoms of each element
  4. 12. composition / the percent by mass of each element in a compound
  5. 13. an organic compound composed only of carbon and hydrogen
  6. 17. a chemical reaction in which one atom gains electrons while one atom loses electrons
  7. 18. / An ionic compound made up of a cation from a base and an anion from an acid
Down
  1. 1. base / Proton (H+) acceptor
  2. 2. reaction / A reaction in which a single compound breaks down to form two or more simpler substances (AB-->A+B)
  3. 3. a chemical change in which one element replaces a second element in a compound (A+Bx-->Ax+B)
  4. 4. a substance that increases the concentration of hydroxide ions in an aqueous solution
  5. 5. / the SI unit of amount of substance
  6. 6. the rate at which reactants change into products over time
  7. 7. number of representative particles in a mole, 6.02x10^23
  8. 8. A solid that forms from a solution during a chemical reaction
  9. 10. the volume occupied by 1 mole of a gas at STP
  10. 14. number / positive or negative number that indicates how many electrons an atom has gained, lost, or shared to become stable
  11. 15. / A substance produced in a chemical reaction
  12. 16. a chemical substance that is present at the start of a chemical reaction