What do you mean is that a school question
The answer is a) by increasing the temperature of the reactants.
Answer:
63.546 u
Would be the molar mass of copper!
The special properties of surface layers, that is, the thin layers of a substance at the boundary of contiguous bodies, mediums, or phases. These properties result from the excess free energy of the surface layer and from the special features of the layer's structure and composition.
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