What are the reactants in the reaction? What are their properties?

2Na + Cl2 => 2NaCl

the reactants in the given reaction are

sodium (Na) and chlorine ( Cl )

Explanation:

this is a highly exothermic reaction , which lead to the formation of

( also known as common salt )

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.