In this task, you are given a question and an answer, you would be asked to create the sentence based on the Question-Answer provided. It should be contained within the Question-Answer provided.
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Question: Question: What can be used to determine the mass of a quantity of material? Answer: molar masses

Answer: Molar masses can be used to determine the mass of a quantity of material.


Question: Question: Amines are weak bases due to the presence of a lone pair of what on the nitrogen atom? Answer: electrons

Answer: Amines are weak bases due to the presence of a lone pair of electrons on the nitrogen atom.


Question: Question: In what form is most of the earth's freshwater? Answer: frozen

Answer:
Most of the earth's freshwater is in the form of frozen.