Chemistry
The red color of rubies is caused mainly by the presence of what element?
More Questions from Chemistry
What kind of cell has a negative EMF and a positive Gibbs free energy?
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What post-transition metal is used to make blue and violet light-emitting diodes (LEDs) and diode lasers?
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The temperature at which gas becomes liquid is considered what?
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What is essential for calcium absorption by the human body?
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What occurs when molecules are evenly spread out in a space?
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What is a chemical process by which the hair is permanently straightened?
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