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Q7: The greater the frequency of light, the
Q11: Light from an incandescent wire travels through
Q32: The elements of Group _ are the
Q48: The ionic compound made of Fe<sup>3+</sup> and
Q48: When a carbon atom forms four single
Q68: Hydrocarbons that have the composition that satisfies
Q97: About 75% of the mass of the
Q100: What are the basic building blocks of
Q133: What organic compound is represented by a
Q178: The element _ is a soft, active