Achemist prepares a solution of mercury(ii) iodide hgi2 by measuring out 0.0067μmol of mercury(ii) iodide into a 350.ml volumetric flask and filling the flask to the mark with water. calculate the concentration in /μmoll of the chemist's mercury(ii) iodide solution. round your answer to 2 significant digits.

Which of the following is a testable hypothesis? a. if i brush my teeth, i will get fewer cavities than if i don't brush my teeth. b. green toothpaste tastes better than blue toothpaste or red toothpaste. c. smart, careful, healthy people always brush their teeth. d. it's wrong to not brush your teeth before you have an important conversation with someone.

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?

Determine type of reaction & predict the product c3h12+o2 =