Mg + 2HCl > MgCl + H2 From the equation above, what mass of hydrogen would be produced if 12.0 gof magnesium reacted completely with dilute hydrochloric acid? (H = 1, Mg = 24) A. 1.0g B.2.0g C. 6.0g 012.0g

answer: the rate of diffusion increases with increase in temperature.

increase in temperature, increases the molecular/particles speed (kinetic energy. diffusion means movement of particles through the material.

generally, the heavier the particle the more it interacts with the environment and more the temperature matters. so higher temperature results in higher diffusion.

a. energy is absorbed in the reaction.

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.