Aluminum is an element. Which best describes what makes up a sample of aluminum?
minum?
one kind of atom
O two different kinds of atoms
all carbon-based atoms
a carbon atom and non-carbon atoms

What is the percent by mass of oxygen in fe2o3

Which statement best describes the he properties of iconic compounds ?

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.