【Daily Question】9.15 Reply +2； To +3

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This post was last edited by zjp on 2015-9-16 at 16:05. In order to increase the popularity of the chemical analysis section, the previous 【Weekly Topic】 activity has been replaced with a 【Daily Question】 activity; this aims to foster an active atmosphere for technical exchanges while also providing members with financial rewards. 【Daily Question】 (Single-choice question) Which of the following substances is an oxidizing agent? ( ) A. Nitrogen B. Hydrogen C. Oxygen D. Potassium chloride. Correct answer: C. Oxygen. Reply with your answer; participating in the quiz earns you +2 wealth points. Those who get all answers correct will receive an additional +3 to +8 wealth points. Those who provide a thorough analysis or explanation of the question and answers, or include detailed calculation processes, will receive extra wealth points as a reward. If your answer is correct and your analysis is accurate, it will be marked as the best reply. Feel free to answer the questions. Note: We will close this post after 24 hours, and at that time we will announce the best reply (the best assistance), as well as the answer and explanation.