Which of the following best describes a mixture? 1) a substance that is made up of several different molecules.
2) a substance that is made up of only one molecule
3) a substance that is made up of only one compound.
4)a substance that is made up of only one element.

How do scientists think that gravity affected the formation of our solar system?

Both josef loschmidt and amedeo avogadro contributed to our understanding of basic molecular numbers, sizes, and reaction ratios. neither scientist discovered “avogadro’s number” in the form we use it today (6.02 x 10 23). still, there’s a controversy over the name. research the contributions from these two scientists and read about how avogadro’s number got its name. briefly state what you think this number should be called, providing key details of each scientist’s contributions to this concept and a solid rationale for your case in naming the number.

What is the subscript for oxygen in its molecular formula