8. Se necesita una solución endulzada para preparar agua de limón, ¿Cuántos gramos de azúcar morena (C12H22O11) es necesario agregar a 600 mL de agua para hacer la solución ¼ molal? 9. Se preparo una solución 6 décimos molal de alcohol etílico (C2H6O) en agua. ¿Cuentos gramos de alcohol etílico están disueltos en 3000 mL de agua?

Describe the interaction that occurs between two objects with the same electrical charge.

3.09 lab: reaction of metals 1 which combinations of substances resulted in a chemical change? for each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. were there any metallic compounds that did not react with either the acid or the base? write the type of metal, based on your examination of the periodic table. make a general statement about the reactivity of the metals in this experiment.

Why do the strengths of london (dispersion) forces generally increase with increasing molecular size? choose one: a. heavier atoms have stronger attractions for each other than lighter atoms. b. dispersion forces are all equal in magnitude; there is no size dependence. c. dispersion forces arise from the attraction between the nuclei of atoms, and larger molecules have larger nuclei. d. dispersion forces arise from dipoles caused by the electron distribution being distorted. larger molecules have more electrons and, therefore, more distortions and a bigger force. e. dispersion forces depend on distance. larger molecules are farther apart and so the forces are smaller.