Chemistry

The red color of rubies is caused mainly by the presence of what element?

More Questions from Chemistry
Which of the following is found in stinging insects?
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What is the only metallic element that is liquid at standard conditions for temperature and pressure?
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Which of the following analytical techniques gives an "ion peak"?
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Which of the following is a compound?
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An atom of which of the following elements has the smallest volume?
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The Diels-Alder reaction is an example of which class of reactions?
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What would you call the treatment of disease, usually cancer, by chemical agents?
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The dumping of most toxic chemicals into the ocean was banned by what treaty?
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