Nail polish remover containing acetone was spilled in a room 7.63 m × 5.68 m × 5.16 m. Measurements indicated that 9,750 mg of acetone evaporated. Calculate the acetone concentration in micrograms per cubic meter.

(Enter your answer in scientific notation.)

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?