Match each front with its description. occluded front
when a warm air mass slides over a cold air
mass
stationary front
when a cold air mass slides under a warm
air mass
cold front
when two cold fronts force a warm front up
and block it from the surface
warm front
when a cold air mass and a warm air mass
meet and do not move

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.