How many levels are in the classification system?

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

Avariable that is not being directly tested during an experiment should be changed varied experimented controlled

The lab procedure involves several factors, listed below some were variable and some were constant. label each factor below v for variable ot c for constant