Chemistry

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

More Questions from Chemistry
Which of the following is a unit for measuring liquids?
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Which noble gas has "A" as its first letter?
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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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Which of the following analytical techniques gives an "ion peak"?
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Which of the following is an element?
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What type of fuel do semi-trailer trucks generally use?
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Which of these is a fuel?
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Scotch tape and plastic wrap are made from what?
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