Lesson 5.7 Exploring Covalent Gases

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Across
  1. 3. Hydrogen gas is highly ___________
  2. 4. ________ bonds are when the atoms share electrons
  3. 8. A _______ covalent bond forms with three pairs of electrons
  4. 9. A _______ covalent bond forms with one pair of electrons
  5. 14. A test for carbon dioxide in the lab is the __________ test
  6. 16. An example of a covalent gas with a double bond
  7. 18. Covalent compounds have weak intermolecular _______
  8. 19. Covalent compounds tend to be liquids and gases at ______ temperature
  9. 20. The test for the presence of hydrogen gas in the lab
  10. 21. The test for oxygen in the lab is the ________ splint test
  11. 22. A type of chemical needed to generate carbon dioxide
  12. 24. The number of lines when drawing a bond represent the number of pairs of ________
  13. 25. Covalent compounds typically have _____ melting points
  14. 27. A _______ covalent bond forms with two pairs of electrons
Down
  1. 1. An atom's outermost electrons
  2. 2. Limewater test is for this gas: carbon _________
  3. 5. Which tends to have the stronger intermolecular forces, a gas or a liquid?
  4. 6. Sound made during a successful splint test
  5. 7. A covalent diatomic gas
  6. 10. The gases hydrogen, oxygen and carbon dioxide are all __________
  7. 11. The lightest diatomic gas
  8. 12. Hydrogen, nitrogen and oxygen are examples of _________ molecules
  9. 13. An example of a covalent gas with a single bond
  10. 15. A molecule made of at least two different elements
  11. 17. An example of a covalent gas with a triple bond
  12. 23. A successful limewater test will make the limewater _______
  13. 26. One use for hydrogen is the hydrogen _______ cell
  14. 28. A test for carbon dioxide in the lab: the _______ splint test