Deja caer un borrador, unas llaves y una hoja papel desde la atura de tu hombro. Observa como caen. ¿Cuánto tiempo tardan en caer? ∙ Problema.- Cuando se deja libre un cuerpo, se cae. ∙ Peguntas: 1.- ¿Porque caen unos cuerpos más rápidos que otro? 2.- ¿Por qué caen unos cuerpos en línea recta y otros parecen flotar?

If 34.2 grams of lithium react with excess water, how many liters of hydrogen gas can be produced at 299 kelvin and 1.21 atmospheres? 2 li (s) + 2 h2o (l) yields 2 lioh (aq) + h2 (g)

Both josef loschmidt and amedeo avogadro contributed to our understanding of basic molecular numbers, sizes, and reaction ratios. neither scientist discovered “avogadro’s number” in the form we use it today (6.02 x 10 23). still, there’s a controversy over the name. research the contributions from these two scientists and read about how avogadro’s number got its name. briefly state what you think this number should be called, providing key details of each scientist’s contributions to this concept and a solid rationale for your case in naming the number.

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line