Answer the question below if the molar mass of Pis 31g/mol and the molar mass of Cl is 35.5g/mol.
How much heat will be released when
5.5 g of chlorine reacts with excess
phosphorus according to the following
equation.
2P + 5Cl2 2PCI, AH = -886 kJ

the ozone layer acts as a filter for the shorter wavelength and highly hazardous ultraviolet radiation (uvr) from the sun, protecting life on earth from its potentially harmful effects. when the sky is clear, there is an inverse relationship between stratospheric ozone and solar uvr measured at the earth's surface.