【Weekly Question】Participation from 8/7 to 8/13, 2017 = +2 wealth； +3 to 10 wealth for correct answers
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To increase the popularity of the chemical analysis section, a \"Question of the Week\" campaign has been launched to foster an active atmosphere for technical exchanges while offering financial rewards to users. 【Weekly Question】Multiple-choice question: When placing a weighing flask in an oven for drying, the lid should be ( ) A. placed horizontally on the mouth of the flask B. tightly closed C. removed D. left in any position. Answer: A. Reply with your answer in the comments; participating in this quiz earns you +2 wealth points. Those who get all answers correct receive an additional +3 to +8 wealth points. Those who provide thorough analyses and explanations for the questions or 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 (or the best assistance). Feel free to answer the questions.
This post was last edited by zhuzi2017 on 2017-8-8 14:24 A
When placing a weighing flask in an oven for drying, the lid should be (A) A. placed horizontally on the mouth of the flask B. tightened tightly C. removed D. placed anywhere