8A. A 2.25-L flask is filled with 3.00 mol of gaseous SO2 and 4.00 mol of gaseous NO2. After equilibrium was
reached, 1.60 mol of NO was present. With reference to the equation given, calculate Kc under the
conditions of the experiment.

un recipient conține 6,4 moli de gaz. gazul hidrogen reprezintă 25% din totalul kilometrilor din container. în cazul în care presiunea totală este de 1.24 atm ceea ce este

chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. these processes are called chemical reactions and, in general, are not reversible except by further chemical reactions. some reactions produce heat and are called exothermic reactions and others may require heat to enable the reaction to occur, which are called endothermic reactions. understanding chemical changes is a major part of the science of chemistry.