What are some examples of minerals that occur as elements instead of
compounds

Match the mixture with the substance// i really need on this guys (it’s a pic btw)

How have the greenhouse gasses increased from the year 2000 to 2018

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.