【Daily Question】Jan 17, 2016: Participation +2 Wealth； +3 to 8 wealth for correct answers
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This post was last edited by zjp on 2016-1-19 at 08:30. To increase the popularity of the chemical analysis section, a \"One Question per Day\" campaign has been launched; this aims to foster active technical exchanges while also providing financial rewards to users. 【Daily Question】 (Single-choice question) During building construction in winter, salts are often added to the concrete during pouring in order to ensure construction quality. For this purpose, several salts are available; which one do you think would yield the most satisfactory results? ( ) A NaCl B NH4Cl C CaCl2 D KCl. Correct answer: C. Reply with your answer in the comments; you will receive +2 wealth points for participating in the quiz. An additional +3 to +8 wealth points will be given if all answers are correct. Extra wealth points will also be awarded if a thorough analysis and explanation of the questions or answers is provided, or if detailed calculation processes are included. If your answer is correct and your analysis/explanation is accurate, it will be marked as the best reply (or the best assistance). 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.
C、 CaCl2 .
c CaCl2 is used in the construction industry as a antifreeze to accelerate concrete curing and improve the cold resistance of building mortar.
During building construction in winter, salts are often added to the concrete during pouring in order to ensure construction quality. To achieve this goal, there are several types of salts available; which one do you think would yield the best results? ( ) A NaCl
During building construction in winter, salts are often added to the concrete during pouring in order to ensure construction quality. To achieve this goal, there are several types of salts available; which one do you think would yield the best results? (c) A NaCl B NH4Cl C CaCl2 D KCl
Choose C: CaCl2 is used in the construction industry as a antifreeze to accelerate concrete curing and improve the cold resistance of building mortar.
During building construction in winter, salts are often added to the concrete during pouring in order to ensure construction quality. To achieve this goal, there are several types of salts available; which one do you think would yield the best results? (C) A NaCl B NH4Cl C CaCl2 D KCl