8 Alkenes will also react with other halogens. Construct equations for the following
addition reactions.
Pent-1-ene + bromine
a
(1 mark)
b Propene + chlorine
(1 mark
с
But-1-ene + iodine
(1 mark

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.

answer: the value of enthalpy change will be -152.80 kj.

solution:

pressure = 1atm , temperature = = 298 k

given that pressure and temperature are same in both gases , the number of moles of both gases can be determined by the ideal gas equation.

according to reaction 3 moles no are reacting with 1 mol of ,then 0.49 mol of no will react with moles of ozone that is 0.16 moles of ozone. since, no is limiting reagent and is an excessive reagent.

enthalpy change for the reaction between the given volumes of the gases is :

58750.08068 is the answer i think

some sources quote the lethal dose, for an average 170lbs opiate-naive individual is between 75 and 375 mg