Which equation represents mass-energy equivalence?

1) sections 1, 2, and 10 are significant primarily because they suggest the likelihood that a) widow wycherly is actually the woman in the full-length portrait. b) dr. heidegger wants to include his guests in an experiment with the water. c) dr. heidegger plans to drink some of the water from the vase and needs witnesses. d) the guests will be asked to witness dr. heidegger's transformation when he drinks the water.

What is the single most important equation in all of physics?

Directions: count the number of atoms. ar co2 na3po4 so3 nac2h3o2