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Organic Compound Notes. What is a compound?. A substance made of two or more elements chemically combined in a set ratio. What is an element?. A substance that cannot be broken down into any other substances by chemical or physical means. What is an element symbol?.
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What is a compound? • A substance made of two or more elements chemically combined in a set ratio.
What is an element? • A substance that cannot be broken down into any other substances by chemical or physical means.
What is an element symbol? • One or two letter symbols identify most elements. • Example: H is for Hydrogen, O is for Oxygen, Ne for Neon
Writing chemical formula • The first letter of the chemical symbol will be a capital letter • Example: Carbon – C, Sulfur – S, Nitrogen – N • The second letter of the chemical symbol will be a lower case • Example: Calcium – Ca, Sodium – Na, Helium – He
Counting elements in the compound • Count the number of capital letters in the compound to identify how many elements are there in the compound. • Example: NaCl (salt) is made up of how many elements? • 2 elements (Na, Cl)
Let’s practiceHow many elements in the following compound? • C2 H3 N • C56 H58 Cl14 Cu N16 S4 • NaCl • H2O • CO2
Use Textbook 34-35 to identify the element of the following element symbol • B 9. Li • H 10. Ca • C 11. Na • O 12. Cu • P 13. Cl • N 14. Cr • S 15. Cs • Al
Compound Inorganic Organic
What is an organic compound? • All organic compounds contain the element carbon and may contain other elements such as hydrogen, oxygen, phosphorus, nitrogen and sulfur.
What is an inorganic compound? • All compounds that do NOTcontain the element carbon.
Identify as Organic or Inorganic Compound • C3H5NO • NaCl • CuO2 • CH3OH • C3H7NO2 • AlSb • BeCl2 • CdF2 • C7H5NOS • C6H5Br