Answer :
Final answer:
The correct expression for twenty milliequivalents is 20.0 mEq.
Explanation:
20.0 mEq is the correct expression for twenty milliequivalents. Milliequivalents (mEq) is a unit of measurement used in chemistry and medicine to represent the amount of an ion or compound. The use of decimal point and zero after the decimal is significant to indicate the precision of the measurement. Therefore, the correct expression for twenty milliequivalents is 20.0 mEq.
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