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The empirical formula and the molecular formula for a compound cannot be the same.
Q21: For the reaction <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6421/.jpg" alt="For the
Q22: All these atoms have seven electrons in
Q24: A gas occupies 42.6 L at 2.00
Q30: What element has the electron configuration 1s<sup>2</sup>2s<sup>2</sup>2p<sup>6</sup>3s<sup>2</sup>3p<sup>3</sup>?<br>A)
Q37: You transfer a sample of gas at
Q37: Four of the most important elements on
Q48: When the equation Si(s) + HF(aq)
Q61: CH<sub>3</sub>OH(l) + O<sub>2</sub>(g) <span class="ql-formula" data-value="\rightarrow"><span
Q66: When 3.4 mol of Fe reacts with
Q75: A sample of oxygen gas (O<sub>2</sub>) has