7. Write some simple rules for writing the formula for an ionic compound.

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.

the answer to your question is c.

if you read the house of usher you should know that the house was haunted

the correct answer would be d. hope this !