What is the volume occupied by 2.79 x 1021 atoms of Ar at STP?

How much energy is made when a pice of wood burns. how do you know

Why is silver chloride is an ionic compound

Astudent is trying to create a table that compares hypotheses, theories, and laws. hypothesis theory law do scientific researchers formulate it? yes yes yes does it explain why things happen? yes yes no yes yes yes is it used to make predictions? no yes yes which of the following questions would most likely fill the blank in the table? is it an intelligent guess? is it newly formulated? is it based on observations? has it been proved?