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In Search of Active Ingredients- Chemical and Physical Changes

In Search of Active Ingredients- Chemical and Physical Changes. Essential Vocab. Reactant a substance that undergoes a chemical change (ex- baking soda, vinegar) Product a new substance that’s formed in a chemical change (ex- CO 2 ). Essential Vocab. Inert Ingredients

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In Search of Active Ingredients- Chemical and Physical Changes

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  1. In Search of Active Ingredients- Chemical and Physical Changes

  2. Essential Vocab • Reactant • a substance that undergoes a chemical change (ex- baking soda, vinegar) • Product • a new substance that’s formed in a chemical change (ex- CO2)

  3. Essential Vocab • Inert Ingredients • substances that do NOT react chemically with each other • Active Ingredients • substances that DO react chemically!

  4. Today’s Ingredients • CaCl2- Calcium Chloride • NaHCO3- Sodium Bicarbonate • C12H22O11- Amylose Sugar • NaCl- Sodium Chloride • Solution= Phenol Red • C19H14O5S- Phenolsulfonphthalein

  5. Combined Reaction • 1. Put 1 spoon of each substance in a baggie. • 2. Fill the plastic vial with phenol and place it in the baggie without spilling it. • 3. Zip the baggie closed and then mix the solution and the mixture together. • 4. Mix the substances together well using your hands. • 5. Record any evidence of a chemical change.

  6. Today's Challenge du Jour: • Figure out which of the substances in the mixture are chemically reactive and which are inert ingredients. • Then you can do other experiments. (ex: Does the ­amount of substances make a difference?) • Record all your data on the your individual chart. Beware of repetitions!

  7. In Search of Active Ingredients: Signs of a Chemical Reaction Phenol Red CaCl2 NaCl NaHCO3 C12H22O11 Phenol Red CaCl2 NaCl NaHCO3 C12H22O11

  8. Phenol Red CaCl2 NaCl NaHCO3 C12H22O11 Phenol Red CaCl2 NaCl NaHCO3 C12H22O11 Phenol Red Phenol Red CaCl2 CaCl2 NaCl NaCl NaHCO3 NaHCO3 C12H22O11 C12H22O11 Phenol Red CaCl2 NaCl NaHCO3 C12H22O11 Phenol Red CaCl2 NaCl NaHCO3 C12H22O11 Phenol Red Phenol Red CaCl2 CaCl2 NaCl NaCl NaHCO3 NaHCO3 C12H22O11 C12H22O11

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