Arranging of chemical equations

Arranging of chemical equations:


Include three stages:

1.      Record formulas of substances: entered in the reaction (on the left) and products of reaction (on the right), having connected them on the sense by signs «+», «®»:
eg;

HgO ® Hg + O2

2.      Selection the coefficients for each substance so that amount of atoms of each element in left and right part of equation will be equally:
eg;

2HgO ® 2Hg + O2

3.      Checking a number of atoms of each element in left and right parts of equation.