For this activity, you will explore your immediate surroundings—those items you interact with on a daily basis—and think about their atomic structure, including what state of matter the object is in and what kind of atomic elements it is composed of. Then you’ll create an infographic showcasing your findings in order to share with your friends how exciting everyday science can be.

This is a mixture that has the same composition throughout.

In a sample of oxygen gas at room temperature, the average kinetic energy of all the balls stays constant. which postulate of kinetic molecular theory best explains how this is possible? a. attractive forces between gas particles are negligible because the particles of an ideal gas are moving so quickly. b. collisions between gas particles are elastic; there is no net gain or loss of kinetic energy. c. gases consist of a large number of small particles, with a lot of space between the particles. d. gas particles are in constant, random motion, and higher kinetic energy means faster movement.

How many atoms of mg are present in 97.22 grams of mg? 6.022 × 1023 2.408 × 1024 4.818 × 1024 5.855 × 1025