Which human action would most likely increase the nutrients in an ecosystem? A. building a rock wall
B. fertilizing a cornfield
C. watering a flower bed
D. pulling weeds from a garden

In a laboratory, 1.55mg of an organic compound containing carbon, hydrogen, and oxygen is burned for analysis. this combustion resulted in the formation of 1.45mg of carbon dioxide and .89 mg of water. what is the empirical formula for this compound?

Aconcentrated solution of ammonia is 14.8m and has a density of 0.899g/l. what is the concentration of ammonia in this solution in weight percent (%w/w)?

How many molecules are in 6.0 moles of methane