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Nitrogen and oxygen can be obtained from air. Why does the air need to be cooled before the start of the process?
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Which statement describes the phase change that occurs when dry ice is placed in an open container at room temperature?
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Areader can tell that the meaning of “obnoxious” will include “having the quality of something” because of the .a) prefix b)pronunciation c)suffix d) word root
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Nitrogen and oxygen can be obtained from air. Why does the air need to be cooled before the start of...
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