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Chemistry
What is a vital constituent of plant and animal life, and is the key component of hemoglobin?
Chemistry
What is a vital constituent of plant and animal life, and is the key component of hemoglobin?
Zinc
Manganese
Calcium
Iron
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What is a combination of substances that still remain intact?
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What is another name for salt?
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What process changes a rock's chemical composition to break it down?
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Which of the following is an example of a mixture?
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What word means "two or more types of matter are evenly distributed in a mixture"?
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What two solvents could be used in a successful extraction?
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Who is considered the "father" of organic chemistry?
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Which scientist was the first to discover that for DNA, "A=T and C=G"?
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