The stiffness S of an atomic bond in a material is 50 N/m and its centre-to- centre atom spacing is 0.3 nm. What, approximately, is its elastic modulus?

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.