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What transition metal is responsible for the color of amethyst ?
Q6: The balanced equation for the decomposition of
Q15: What happens to the atomic mass number
Q24: The electrolysis of molten AlCl<sub>3 </sub>for 3.25
Q39: What current (in a) is required to
Q50: Charged particles are accelerated because the faster
Q69: What colors of light does chlorophyll- a
Q77: In the Bayer process, what is the
Q86: How many grams of sodium chloride are
Q104: A compound contains 38.7% K, 13.9% N,
Q128: Astatine decays by_.