Every corporation may issue one or more classes of stock or one or more series of stock within any class thereof, any or all of which classes may be of stock with par value or stock without par value, with such voting powers, full or limited, or without voting powers and in such series and with such designations, preferences and relative, participating, optional or other special rights, and qualifications, limitations or restrictions thereof, as shall be stated and expressed in the articles of incorporation or of any amendment thereto, or in the resolution or resolutions providing for the issue of such stock adopted by the board of directors pursuant to authority expressly vested in it by the provisions of the articles of incorporation or of any amendment thereto, which resolution or resolutions shall be preceded by a determination by the directors, and include a statement that the directors have determined, that the preferences and relative, participating, optional or other special rights, and qualifications, limitations or restrictions thereof stated and expressed therein are under the circumstances prevailing at the time of adopting such resolution or resolutions fair and equitable to all the existing stockholders. The power to increase or decrease or otherwise adjust the capital stock as provided in this chapter shall apply to all or any such classes of stock.