Advance Chem PeTA

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Across
  1. 3. ,is the scientific discipline involved with elements and compounds composed of atoms.
  2. 6. is the unit of measurement for amount of substance
  3. 7. used in breathing
  4. 8. table, the table in which all known elements are listed
  5. 10. mass, is the mass of an atom.
  6. 12. constant is the proportionality factor that relates the number of constituent particles in a sample with the amount of substance in that sample.
  7. 13. is a unit prefix in the metric system denoting a factor of one hundredth.
  8. 16. first element in the periodic table
  9. 17. notation, is a way of expressing numbers that are too large or too small
  10. 18. formula of a chemical compound is the simplest positive integer ratio of atoms present in a compound.
  11. 19. the 118th element
  12. 20. formula, consists of the chemical symbols followed by numeric subscripts describing the number of atoms of each element present in the molecule.
Down
  1. 1. structure used in calculating moles
  2. 2. composition is calculated from a molecular formula by dividing the mass of a single element in one mole of a compound by the mass of one mole of the entire compound.
  3. 3. is a chemical substance composed of many identical molecules composed of atoms from more than one element
  4. 4. commonly mistaken as weight
  5. 5. is a pure substance consisting only of atoms that all have the same numbers of protons
  6. 9. is a chemical element with the symbol C
  7. 11. formula, is a way of presenting information about the chemical proportions of atoms
  8. 14. mass, of a chemical compound is defined as the mass of a sample of that compound divided by the amount of substance measured in moles.
  9. 15. analysis, is the analysis of the relationships between different physical quantities