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816. Classify common substances as elements or compounds based on their symbols and formulas. Classify common substances as elements or compounds based on their symbols and formulas. Key concepts/skills: Level 1: Define key vocabulary.

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816

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  1. 816 Classify common substances as elements or compounds based on their symbols and formulas.

  2. Classify common substances as elements or compounds based on their symbols and formulas. • Key concepts/skills: Level 1: Define key vocabulary. Level 2: Classify substances given their symbols or formulas. Level 3: Compare and contrast elements and compounds.

  3. Classify common substances as elements or compounds based on their symbols and formulas. • Key vocabulary: • Pure substances • compound • molecule • Elements • formula • Element symbol • atom (review)

  4. Classify common substances as elements or compounds based on their symbols and formulas. Pure Substances – made up of only one type of atom or molecule (Au) (H20 a glass of water is made of only H20 moecules) • Elements – matter that cannot be broken down into a more simple form • Each of the 118 elements is represented by a symbol • The symbol is always capital/ the second letter of a symbol is always lower case

  5. Classify common substances as elements or compounds based on their symbols and formulas. • Symbols are named after people and places and do not always match the word • Calcium – Ca, Potassium – K, Carbon - C

  6. Classify common substances as elements or compounds based on their symbols and formulas. II. Compounds – more than one type of atom joined chemically • Formulas are symbols and subscripts that tell what kind of atom and how many of each atom is in the Compound B. Ammonia – NH4, Carbon dioxide – CO2 , Glucose sugar – C6H12O6

  7. Classify common substances as elements or compounds based on their symbols and formulas.

  8. Classify common substances as elements or compounds based on their symbols and formulas. Examples of Elements and Symbols

  9. Classify common substances as elements or compounds based on their symbols and formulas. Examples of Compounds and Formulas

  10. Classify common substances as elements or compounds based on their symbols and formulas. Element or Compound?

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