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Q21: The O-S-O bond angle in SO<sub>2</sub> is
Q22: Of the following, only _ has sp<sup>2</sup>
Q34: A mole of yellow photons of wavelength
Q37: Valence bond theory does not address the
Q49: Which nonmetal exists as a diatomic solid?<br>A)bromine<br>B)antimony<br>C)phosphorus<br>D)iodine<br>E)boron
Q52: A gas mixture of Ne and Ar
Q53: For which one of the following reactions
Q63: In their compounds, the charges on the
Q75: How many molecules are there in 4.00
Q95: The main component of air is oxygen.