hydroxides of heavy metals. hence, the concept of "base" was born. this concept was first introduced by the french chemist guillaume françois rouelle in . he noted that acids—which in those days were mostly volatile liquids, such as acetic acid —turned into solid salts only when combined with specific substances...
activity because they physically group the mixture examples, which have both words and pictures. it will test your abilities on mixtures and pure substances. optical homogeneity is more general than transparency, usually restricted to visible wavelengths. → topic: heterogeneously dense vs. striving...
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