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Essay Details:
Essay text:
Its initial color was a shade of light blue. As heat was applied to the crucible, the color of the metal began to get lighter. There was also some browning along the edges. Once the rubber policeman was used to stir the compound more water was able to evaporate from the metal sample. The final color was a light gray or a greenish-white.
Sources of Error:
One major source of error resulted from the stirring of the compound during the heating process. The rubber policeman was used and some of the moist part of compound stuck to the glass rod. Many attempts were made to return all of it back to the crucible but there was still some that could not be returned...
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