Fill in the Blank Question An atom of calcium (in group 2) would most likely
two electrons to become a(n)
ned In
charged ion and to obtain a(n)
-gas electron arrangement.

What is the number of moles of chemical units represented by 9.03x10^24? and how do i show work? (dumb it down )

What is the empirical formula for c4h8o2

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?