Match these items with their correct definitions.

1 .
gas
most pure basic substances
2 .
elements
combined atoms are different
3 .
iupac
tiny particles of elements
4 .
compounds
measures gravitational pull
5 .
weight
no fixed shape or volume
6 .
mendeleev
co 2
7 .
atoms
chemist who developed the periodic table
8 .
carbon dioxide
authority which assigns names to elements

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.

What royal scientist used the 29th day of frozen vapor to encounter elements for mastering new culinary creations?

What must occur for air masses to form fronts