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Q1: 14N + 4He → _ + 1H
Q6: Which of the following unbranched/acyclic hydrocarbons will
Q7: Fr+ is called _.<br>A) a cation<br>B) an
Q31: 1-butyne<br>A)CH?CH?C?CCH?CH?<br>B)HC?CCH?CH?CH?<br>C)CH?C?CCH?<br>D)CH?C?CH<br>E)HC?CCH?CH?CH?CH?<br>F)CH?C?CCH?CH?<br>G)CH?C?CCH?CH?CH?<br>H)HC?CH<br>I)HC?CCH?CH?
Q38: When an unstable nucleus emits an alpha
Q39: According to the experiments of Ernest Rutherford,
Q43: km<br>A)time<br>B)energy<br>C)electrical charge<br>D)mass<br>E)length<br>F)volume<br>G)temperature<br>H)density
Q56: Enzymes serve as catalysts in biochemical reaction
Q56: 465.000 g is equivalent to _.<br>A) 0.0465
Q85: aqueous sucrose solution<br>A)non-electrolyte<br>B)electrolyte