Which item in the photo is a good thermal insulator and why A. the plastic handle because it’s electrons don’t move freely
B. the cut vegetables because they contain a lot of water
C. The metal pan, because it’s electrons move quite freely
D. Human skin because it is made up mostly of water

The enthalpy of formation of water is -285.8 kj/mol. what can be inferred from this statement?

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.

The chemical bond connecting one nucleotide with the next one along the nucleic acid chain is called a