U5L3 Classifying Reactions Portfolio Wo

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Classifying Reactions

Safety Reminder: Wear safety glasses and conduct experiment in a well-ventilated area.

Day 1

Materials:

Part I: steel wool (HEB, Target, Lowe’s, Home Depot) You can also try SOS pads. tweezers vinegar test tube (in your kit) water petri dish (in your kit)

Part II: hydrogen peroxide small pieces of raw potato (yeast or beef liver may be substituted for the potato) small bowl

Procedures:

Part I: Reaction between iron and oxygen

1. Break off a small piece of steel wool and soak it in vinegar for at least one minute. Use tweezers to push the steel wool around to remove all bubbles.
2. Using the tweezers, lift the steel wool out of the vinegar and shake if gently over a paper towel.
3. Stretch the steel wool
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Write a balanced equation for the reaction between iron and oxygen.

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