Chemistry

What is a vital constituent of plant and animal life, and is the key component of hemoglobin?

More Questions from Chemistry
What symbol appears on the periodic table for Thorium which has the atomic number 90?
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What is the stinky gas associated with swamps and anaerobic decomposition?
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Which of the following is the list of hydrogen halides of group 7A from highest boiling point to lowest?
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What symbol appears on the periodic table for the element with the atomic number 10?
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Which atomic particle is outside the nucleus?
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Which of the following is a compound?
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The Statue of Liberty is made of an iron frame with a sheet of what other metal hung over it?
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Which element is commonly used in catalytic converters due to its properties as a reducing agent?
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