The double bond in O2 is much weaker than other double bonds or pairs of single bonds, and therefore the formation of
the stronger bonds in CO2 and H2O results in the release of
energy . Why is the double bond of oxygen weaker?​

It was necessary to redeem the world and he knew that his son was the only way

English , i don't understand spanish.

Answercanyon;

Following are the  advantages of the parametric equations: 1) they can be used to graph curves that are not functions, like the unit circle.2) the parameter can be used to represent the quantity that is  useful to  provide us with better information about the graph.3)  it is useful to convert between rectangular equations and parametric equations.with specific reference to chemistry,  parametric equations are employ for solving hydrogen and hydrogen-like ions, quantum mechanically. herein, cartesian coordinates are converted in spherical polar coordinates. the solution obtained, when plotted on spherical polar graph paper, provides visualization of atomic orbital such as s,p,d and f.