Arrange these samples in order of increasing mass: 2.5 mol Pb, 0.75 mol Au, 4.0 mol Mg, and 12 mol F.

Explain in detail of the four major scientific developments that spurred the formulation of the plate tectonics theory

Which answer tells the reason the earth’s climate is getting warmer? too many animals are becoming extinct. large glaciers are melting in antarctica. the earth is moving closer to the sun. driving cars gives off gases that trap heat in the atmosphere.

Athe top of a hill, an athlete on a skateboard has x joules of mechanical energy. how much mechanical energy will she have at the bottom of the hill? ignore the effects of friction.