How many covalent bonds will be drawn to phosphorous in po43– for the dot structure that expands the octet to minimize formal charge and if necessary places negative formal charges on the most electronegative atom(s).

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?