Percentage of the heavy water in ordinary water is around ____________________?
Correct answer: A. 0.015
- A. 0.015
- B. 7.54
- C. 0.71
- D. 32.97
Explanation
Naturally occurring heavy water is present at roughly 0.015% of ordinary water, mainly as deuterium-containing molecules. The larger percentages listed would not represent natural heavy-water abundance.
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