P4 + Cl2 = PCI3 Calculate how many grams of phosphorus that reacted if 250g of phosphorus trichloride, PCI, is produced by the above reaction. ​

How many liters of oxygen gas, at standard temperature and pressure, will react with 35.8 grams of iron metal? 4 fe (s) + 3 o₂ (g) → 2 fe₂o₃ (s)

The bond energy for the van der waals bond between two helium atoms is 7.9×10−4ev. assuming that the average kinetic energy of a helium atom is (3/2)kbt, at what temperature is the average kinetic energy equal to the bond energy between two helium atoms

Some animals that try to adapt to climate changes eventually die due to starvation, as climate change alters the web.