Which one of the following statements about s orbitals is incorrect ? Group of answer choices

Part of molten rock at mid-ocean ridges

Layers of rock containing fossils, like the layers illustrated here, are most likely composed of rocks.

Which of the following is true for the actual yield of a reaction? it is always calculated as a ratio. it is the yield from the excess reactant. it is the yield from the limiting reactant. it is always less than the theoretical yield.