Performance Task 2.4

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Across
  1. 3. symbol of Ni
  2. 5. an acyclic saturated hydrocarbon
  3. 6. symbol of P
  4. 8. a hydrocarbon that contains a carbon–carbon double bond
  5. 10. hydrocarbons that have double or triple covalent bonds between adjacent carbon atoms
  6. 13. a pure substance consisting only of atoms that all have the same numbers of protons in their atomic nuclei
  7. 15. m/v
  8. 16. symbol of O
  9. 17. often shortened to "amp"
  10. 18. number of atoms
Down
  1. 1. symbol of Ca
  2. 2. the measurement system used in many countries including the United States using feet, pounds and seconds
  3. 4. system of measurement that succeeded the decimalised system based on the metre introduced in France in the 1790s
  4. 7. an unsaturated hydrocarbon containing at least one carbon—carbon triple bond
  5. 8. NA = 6.02214076×10²³ mol⁻¹
  6. 9. m/n
  7. 11. symbol of H
  8. 12. commonly used in stoves and in chemistry labs
  9. 14. hydrocarbons based on chains of C atoms