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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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jmarc jmarc
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Posts: 199
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4 years ago
> Classify each of the following as a pure substance (element or compound) or a mixture (homogeneous or heterogeneous):

a.    copper in copper wire
b.    a chocolate-chip cookie
c.    nitrox, a combination of oxygen and nitrogen used to fill scuba tanks

> A salad dressing is prepared with oil, vinegar, and chunks of blue cheese. Is this a homogeneous or heterogeneous mixture?
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L u c k y  D u c k y

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4 years ago
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