What specifically does str measure?
a) str length
b) the number of repeating units
c) distance traveled on electrophoresis gel
d) the difference between the number of repeating units between two strs

The msds for glacial acetic acid says that it is a flammable liquid that can severely burn any human tissue it comes in contact with. it reacts with bases, various metals, and strong oxidizing agents. its vapors can form explosive mixtures with air.

The biosphere of the earth is made up of what compound? organic or inorganic?

How can a give a full method for the experiment of separating sand from water by filtration? 1-materials 2-steps 3-conclusion also for water and salt separated by the evaporation or distillation process