In the reaction 2mg (s) +o2 (g) + 2h2o (1)= 2mg2+ (aq) +4oh- (aq), which substance is reduced? a. mg b. o c. h2o d. oh e. none of the above (this is not a redox reaction)

C. H20 is reduced

The first equation has h20 part of it, then the second part doesn't have the substance h20

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.

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