A certain polyatomic ion contains 49 protons and 50 electrons. What's the net charge of this ion? Question 15 options:
A)  +1
B)  –1
C)  –2
D)  +2​

Explanation:

B more negative charges than positive charges

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.