About 300 million years ago, the land of Earth was in a single mass known as Pangaea, as shown in Figure A below. About 150 million years ago, Pangaea broke up into the land masses shown in Figure B. Based on the diagrams, the fossils of species on continent X would be most similar to those found where else?

Silver tarnishes as silver metal reacts with hydrogen sulfide, h2s, in the air. in this reaction, dark silver sulfide, au2s, covers the surface of silver. when silver is polished, this coating of silver sulfide can be removed from the surface. this makes the silver shiny again. enter the coefficients that balance the tarnishing reaction equation. (type 1 for no coefficient.)

Find the mass in grams of 1.37x1020 particles of h3po4

Achemist has dissolved a certain substance in water. the chemist knows that more of the substance could be dissolved into the water before it stops dissolving. therefore