Chemistry Crossword Puzzle

12345678910111213
Across
  1. 1. a reaction in which two or more substances combine to form a new compound
  2. 3. a representation of a chemical reaction that uses symbols to show the relationship between the reactants
  3. 4. the mass in grams of 1 mol of a substance
  4. 7. a reaction in which a gas, a solid precipitate, etc. forms from the apparent exchange of atoms or ions between two compounds
  5. 11. the SI base unit used to measure amount of a substance whose number of particles is the same as the number of atoms of carbon in exactly 12g or carbon-12
  6. 13. a chemical formula that snows the number and kinds of atoms in a molecule, but not the arrangement of the atoms
Down
  1. 1. reactions of an element with a compound that produces a new element and compound
  2. 2. the number of protons in the nucleus of an atoms the atomic number is the same for all atoms of an element
  3. 5. a chemical formula that shows the composition of a compound in terms of the relative numbers and kinds of atoms in the simplest ratio
  4. 6. 6.02*10^23, the number of atoms or molecules in 1 mol
  5. 7. a reaction which a single compound breaks down to form two or more simpler substances
  6. 8. the percentage by mass of each element in a compound
  7. 9. the oxidation reaction of an organic compound, in which heat released
  8. 10. the process by which one or more substances change to produce one or more different substances
  9. 12. a small whole number that appears as a factor in front of a formula in a chemical equation