Astudent balanced the chemical equation mg + o2 →mgo by writing mg + o2 → mgo2. was the equation balanced correctly? explain your answer. if the equation was not balanced correctly, write the correctly balanced equation.

Combustion is the act or process of burning. therefore, i believe the answer is  a: burning wood. 

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.