Which of the following is an L-projection?

In the analysis of hair and fiber samples, which does a compound comparison microscope allow for that a conventional compound microscope does not? a. simultaneous observation b. polarization c. fluorescence d. higher magnification

If a reactant was removed, did the new equilibrium system shift to make more reactants or more products?

7. what temperature is need to just dissolve 50 g of nh4cl in 75 g of water? '