Write the following separation techniques?
a. Filtration
b. Evaporation
C. Fractional distillation
d. Chromatography

14. many depressants reduce small muscle control, making it harder for a. you to steer b. your mind to consider complex problems c. the eye to scan, focus, or stay still d. the kidneys to filter alcohol out of the bloodstream

Chen drew a diagram to compare the ways in which different organisms obtain nitrogen. which label belongs to the area marked z?

What is the empirical formula for c4h8o2