【Daily Question】February 1, 2016: Participation +2 Wealth； +3 to 8 wealth for correct answers
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This post was last edited by chqd812 on 2016-2-2 at 11:18. Multiple-choice question: 2 points for active participation, 2 points for each correct answer, 10 points for selecting all answers correctly; no points for selecting incorrect answers, and no points for re-editing. Heating is often used in the physical and chemical analysis in laboratories. In practical work, if these basic knowledge points are not understood, mistakes will inevitably occur, and even testing accidents may result. The glass instruments used fall into two categories: those that can be heated and those that cannot. Which of the glass instruments below can be used for heating on an electric furnace? （） A. Measuring cylinder, measuring cup ； B. Flasks, reagent bottles ； C. Beakers, flasks ； D. Distillation flask. Standard answer: C D
Heating is often used in the physical and chemical analysis in laboratories. In practical work, if these basic knowledge points are not understood, mistakes will inevitably occur, and even testing accidents may result. The glass instruments used fall into two categories: those that can be heated and those that cannot. Which of the glass instruments below can be used for heating on an electric furnace? (CD)
Two types of heating. Which of the glass instruments below can be used for heating on an electric furnace? (CD) A. Measuring cylinder, measuring cup ； B. Flasks, reagent bottles ； C. Beakers, flasks ； D. Distillation flask.