dos autos A y B se mueven sobre el mismo camino pero en sentido contrario con velocidades vA = -30 m/s y vB = 20m/s, si consideramos como punto de referencia el conductor del auto A, ¿a que velocidad observa el conductor en A al auto B?

How many atoms of oxygen are contained in 160 grams of n2o3

Choose all the answers that apply. as ocean depth increases, temperature decreases temperature increases pressure increases pressure decreases salinity increases density increases

Ican determine the molar mass of an element by looking on the under the atomic mass for the element. for example the molar mass of phosphorus is 30.974 grams/mole. avogadro’s number tells me the amount of representative particles in 1 mole of any substance. this means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.