Calculate the heat energy required, in joules, to melt 725 grams of ice which is at 0.0°C. The heat of fusion of ice is 333.6 J/g.

The answer is 4 i don't know if its right let me see.

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. 

The answer to your q the total mass is 73

It is kept in an engine.hope it