【Daily Question】August 3, 2016: +2 Wealth for participation； +3 to +10 wealth for correct answers

Thread Content

To increase the popularity of the chemical analysis section, a \"One Question per Day\" campaign has been launched to foster an active atmosphere for technical exchanges while also providing financial rewards to users. 【Daily Question】 (Multiple-choice) In titrimetric analysis, which of the following situations represent systematic errors? () A. The sample is not thoroughly mixed. B. Incorrect reading of the burette. C. The reagents used are impure. D. The weights have not been calibrated. Answer: C D. Post your answers in the replies; answering correctly earns you +2 points, while getting all answers right gives an additional +3 to +8 points. Those who provide a thorough analysis or explanation of the questions and answers, or include detailed calculation processes, will receive extra points as a reward. If your answers are correct and your analysis is accurate, it will be marked as the best reply (or best assistance). Feel free to answer the questions.