696 J. Mater. Sci. Technol., Vol.22 No.5, 2006 Kinetics of Silver Dissolution in Nitric Acid from Ag-Au0.04 -Cu0.10 and Ag-Cu0.23 Scraps S.K.Sadrnezhaad† , E.Ahmadi and…
A substance is analyzed in a laboratory, and when viewed under an electron microscope, it is revealed that it contains only one kind of atom. Is the substance an element,…