Students will learn how to categorize matter as either pure substances or mixtures. Students will apply tests, based on physical properties of matter samples, to determine whether a mixture is ...
While the impurities in acetylene can be toxic and even fatal, pure acetylene is of a very low toxicity (not counting the "narcotic" effects). Up to 80 percent, (v / v) acetylene has been administered to surgical patients as a general anaesthetic. The trade name for acetylene was "narcylene."