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Chemistry, 07.07.2019 04:30 kelleemaebarnha

As you pass a magnet over a blackish-yellow powder on a glass plate, black particles separate from the powder and become attached to the magnet. after a few passes of the magnet over the powder nothing but a yellow powder remains in the glass plate. the original blackish-yellow powder was:

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As you pass a magnet over a blackish-yellow powder on a glass plate, black particles separate from t...
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