j17y2 CuPb PbCu ____ AuSn ____ AgHg TiFe FeTi HgAg ____ ____ ____ AgHg TiFe FeTi HgAg ____ ____ ____ CuPb PbCu ____ AuSn ____ ____ ____ CuPb PbCu ____ AuSn ____ AgHg TiFe FeTi HgAg ____ AuSn ____ AgHg TiFe FeTi HgAg ____ ____ ____ CuPb PbCu ____