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This post was last edited by zjp on 2016-1-17 08:11. 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) The result obtained using a calculator for the calculation 2.236×1.1124÷1.036×0.2000 is 12.004471. According to the rules for significant figures, this result should be rounded to ( ). A 12 B 12.0 C 12.00 D 12.004 Standard answer: C. Reply with your answer in the comments; answering correctly earns you +2 wealth points, while getting all answers right grants 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/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.
The result calculated by the calculator for 2.236×1.1124÷1.036×0.2000 is 12.004471; according to the rules for significant figures, this result should be rounded to (C). A 12 B 12.0 C 12.00 D 12.004
The result calculated by the calculator for 2.236×1.1124÷1.036×0.2000 is 12.004471; according to the rules for significant figures, this result should be rounded to (B). A 12 B 12.0 C 12.00 D 12.004
The result calculated by the calculator for 2.236×1.1124÷1.036×0.2000 is 12.004471; according to the rules for significant figures, this result should be rounded to (C). A 12 B 12.0 C 12.00 D 12.004