When does the cell cycle begin? a. when the cell is formed b. when the cell uses energy c. when the cell divides d. when the cell uses oxygen

What is the mass of 8 moles of sodium atoms

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?

Which is an example of a reversible physical change?