cdigital.dgb.uanl.mxcdigital.dgb.uanl.mx/la/1020056741/1020056741_037.pdf · eral includes, first,...

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Page 1: cdigital.dgb.uanl.mxcdigital.dgb.uanl.mx/la/1020056741/1020056741_037.pdf · eral includes, first, the identification of the elements present by qualitative analysis, and, second,
Page 2: cdigital.dgb.uanl.mxcdigital.dgb.uanl.mx/la/1020056741/1020056741_037.pdf · eral includes, first, the identification of the elements present by qualitative analysis, and, second,
Page 3: cdigital.dgb.uanl.mxcdigital.dgb.uanl.mx/la/1020056741/1020056741_037.pdf · eral includes, first, the identification of the elements present by qualitative analysis, and, second,
Page 4: cdigital.dgb.uanl.mxcdigital.dgb.uanl.mx/la/1020056741/1020056741_037.pdf · eral includes, first, the identification of the elements present by qualitative analysis, and, second,
Page 5: cdigital.dgb.uanl.mxcdigital.dgb.uanl.mx/la/1020056741/1020056741_037.pdf · eral includes, first, the identification of the elements present by qualitative analysis, and, second,