Sec. R7.1 Polymerization 356 etc. overall: n NH 2 RCOOH H(NHRCO) n OH (n 1)H 2 O n ARB (n 1)AB We see that from tetramers on, the –mer can be …

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Photographs and descriptions of many samples of the element Copper in the Periodic Table.

Chart of elements, isotopes of elements with exact mass, abundance percentage. Find the abundance of natural isotopes and atomic weights of the elements quickly.

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The USES and APPLICATIONS of VARIOUS CHEMICALS – elements, compounds or mixtures. Uses of selected-examples of Elements, compounds or Mixtures in alphabetical order of name of element, compound or mixture for KS3 Science KS4 Science GCSE/IGCSE CHEMISTRY and GCE AS A2 IB Advanced Level Chemistry …