Is the sun a mechanical mixture or solution??

What is the mass defect of a mole of nuclei with 1.8 x 10^15 j/mol binding energy?

This classification of drug typically changes the brain's chemistry and reduces its ability to create its own endorphins.

The msds for glacial acetic acid says that it is a flammable liquid that can severely burn any human tissue it comes in contact with. it reacts with bases, various metals, and strong oxidizing agents. its vapors can form explosive mixtures with air.