The drinking water in Saplingville was found to contain 11 ppb (parts per billion) of lead. What is the concentration of lead in molarity?

Which is the most likely way an automotive engineer would use chemistry

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?

How many grams are in 68.2 molecules of br2?