Fill in the blanks (Balancing chemical reactions)
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The 2 in front of in is Coefficient.

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The after in the same equation is sub script.

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There are two atoms of in

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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.

i don,t know so just answer mine