PERFORMANCE TASK 4 ANSWER KEY

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Across
  1. 4. The standard unit of volume in the International System.
  2. 6. 6.022 x 10^23 is known as __________.
  3. 8. It gives the number of atoms of each of the elements present in a specific compound. It is the correct formula of the compound.
  4. 10. It is used to determine the amount of other particles of matter
  5. 14. It is the average mass of the atom in an element
  6. 15. An Italian scientist, known for discovering the Avogadro's law.
  7. 16. It is associated with the basic unit that indicates the power of ten used.
  8. 17. It is also known as a "systematic method."
  9. 19. Is a household chemical. It has a chemical formula of NaHCO₃.
Down
  1. 1. A method wherein conversion factors are used for changing units from one system to another
  2. 2. It is the smallest whole number ratio of the atoms in a compound.
  3. 3. Is the name of the element that has an atomic symbol of "Na".
  4. 5. The mass in grams of 1 mol of a substance is called ____________.
  5. 7. Is the molar mass of Hydrogen.
  6. 8. There are 1000 ____ in 1 Liter.
  7. 9. It is the percentage by mass of every element present in a compound.
  8. 11. System of measurement that includes inches.
  9. 12. It is the term used for describing the lowest possible temperature. It is 0K on the kelvin scale.
  10. 13. It is considered as the standard unit of mass.
  11. 18. It is the measure of the quantity of matter in an object.