if the teacher says it is safe to smell a chemical, outlinethe technique you should use
2 answers
Never smell the chemical by sticking your nose right over the beaker, instead, you should gently waft the vapors toward your nose.
Trust your teacher on this? Goodness. As a general rule, I wouldn't trust your teacher on this.
http://wiki.answers.com/Q/How_should_you_smell_chemicals
http://wiki.answers.com/Q/How_should_you_smell_chemicals