Si tengo 15 gramos de Nitrógeno cuya masa en gramos es 14.007 g, ¿Cuántos moles de átomos de Nitrógeno existen?

The graph shows the solubility of several different salts in water, across a range of temperatures. according to the graph, which salt can dissolve at a concentration of about 60 g/100 cm3 of water at 40 degrees celsius?

Guard cells control which event? the growth of plants capture of solar energy gas exchange in leaves water absorption in roots

Which statement is the best summary of the model? a-a series of aerobic and anaerobic reactions take place in cells b- the sun's energy moves through trophic levels in a food chain c-light energy is converted into stored chemical energy plants. d- food molecules are broken down in the cells if living things.