Lines 72 or 75: Refund or Balance Due. Using a calculator, enter your total payments from line 71, and then subtract your total tax from line 63. If the result is less than zero (a negative number), then you have a tax refund. Put the answer (ignoring the negative sign) on line 72.
Not to be confused with Mesomer. A meso compound or meso isomer is a non-optically active member of a set of stereoisomers, at least two of which are optically active. This means that despite containing two or more stereogenic centers, the molecule is not chiral.A meso compound is superposable on its mirror image (not to be confused with superimposable, as any two objects can be superimposed over one another regardless of whether they are the same.his means that despite containing two or more stereogenic centers, the molecule is not chiral. A meso compound is superposable on its mirror image (not to be confused with superimposable, as any two objects can be superimposed over one another regardless of whether they are the same.
(May 2015) The Mobile Telephone Switching Office (MTSO) is the mobile equivalent to a PSTN Central Office. The MTSO contains the switching equipment or Mobile Switching Center (MSC) for routing mobile phone calls. It also contains the equipment for controlling the cell sites that are connected to the MSC.