According to early chemists, which substances were classified as elements? a. those that could not be broken down further by physical means b. those that could not be broken down further by chemical means c. those that had higher numbers of protons in their atoms d. those that had an atomic mass that could be measured

The diagrams to the right show the distribution and arrangement of gas particles in two different containers. according to kinetic-molecular theory, which of the following statements is true? check all that apply. if the temperatures of both containers are equal, container a has greater pressure than container b. if the volume of container a decreased, its pressure would decrease. if the pressure in both containers is equal, container a has a lower temperature than container b.

How many liters of oxygen gas, at standardtemperature and pressure, will react with 35.8 grams ofiron metal? 4 fe (s) + 3 o2 (g) → 2 fe2o3 (s)

What is a for cio3-, the chlorate ion?