Blank is the blank reactive because it has the only one blank

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?

How many oxygen atoms are there in 3.15 moles of hcl manganese (iv) oxide, mno2

How many peaks will be present in a mass spectrum for brcl?