A) What type of reaction is this? b) What happens to the iron nails after some time?

c) What happens to the colour of copper sulphate after the reaction?

d) Write down the chemical equation for this reaction.

e) Is this equation balanced?

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 believe the answer is a.

what is the average time it took the car to travel 0.25 meters?

⇒ 2.23 seconds

what is the average time it took the car to travel 0.50 meters?

⇒ 3.13 seconds