We started off by taking notes on four types of chemical reactions. They were Synthesis, Decomposition, Single Replacement and Double Replacement Reactions. Synthesis means putting something together, Decomposition means taking it apart. Single replacement would be an element switching places with a part of a compound and double replacement would be two parts of two compounds switching places.
Then we completed the 'Burn, Baby, Burn" lab, complete with soundtrack courtesy of youtube. We weighed steel wool, then burnt it using a candle, then weighed it again. Many were surprised to see that the steel wool gained weight after it had been torched.
We discussed how this did not contradict the idea of conservation of mass. We realized that we had not weighed the oxygen that combined with the steel wool.
Finally, we balanced the equation Fe +O2-->Fe2O3 (this was the reaction we had completed).
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