What determines the average kinetic energy of the particles in a gas?
A. the number of collisions
B. the number of particles
C. the size of the particles
D. the temperature

Option D. The temperature

Explanation:

Average kinetic energy of a gas particle is temperature dependant this implies that an increase in temperature will cause the gas particles to gain more energy hence increasing the average kinetic energy. In contrast when a gas particle is allowed to cool(i.e decrease in temperature), the average kinetic energy of the gas particles will drop. So we can see that the average kinetic energy of gas is determined by the temperature.

answer; i believe the correct answer is (c) /// is a homogeneous mixture of gaseous substance nitrogen,oxygen and smaller amounts of other substancesmixtures can be either ( homogeneous or heterogeneous)plz check first good luck

increased stability in the completion of fluorine's outer shell.