1. Perform the following stoichiometric calculation: *
7.25 mol C2H6
mol O2

How does litmus paper indicate an acid?

Compare and contrast physical changes with chemical changes.

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?