Explain why Phosphorus Tribromide and Silicon Tetrachloride have different polarities even though they both have the same atoms around the central atoms.

Sulfuric acid (a component of acid rain) reacts with limestone (calcium carbonate) to produce calcium sulfate and carbon dioxide. this damages buildings and statues made of limestone. which solution of sulfuric acid will damage these structures more quickly? a. 0.001% b. 0.005% c. 0.010% d. 0.015%

In which phase(s) do the molecules take the shape of the container?

Chen drew a diagram to compare the ways in which different organisms obtain nitrogen. which label belongs to the area marked z?