Select the observations that might indicate a chemical change has occurred. Group of answer choices

Formation of a substance in a different state

Breaking or melting

Phase change

Production of flames

Production of heat or light

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.