Which of the following must be done at the end of an experiment?a) Clean all laboratory equipment and return it to the proper location. b) Wipe down your lab station. c) Wash your hands with soap. d) All of the above.

Who is better, messi or cristiano, i need this for a chemistry class. asap

Use this information to determine the number of calends electrons in the atoms. which of the following correctly compares the stability of the two atoms? a) both are unreactive b) both are highly reactive c) a is unreactive and d is reactive d) a is reactive and d is unreactive

Sodium nitrite (nano2) reacted with 2−iodooctane to give a mixture of two constitutionally isomeric compounds of molecular formula c8h17no2 in a combined yield of 88%. draw reasonable structures for these two isomers. click the "draw structure" button to launch the drawing utility. place the two compounds in the appropriate boxes below.