Guys I need your help! What contribution to atomic theory resulted from Albert Einstein's work?

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.

Describe the forces both attractive and repulsive that occur as two atoms move closer together.

What is a number added in front of a formula in order to balance the equation