Question

is classification of matter into pure substances and mixtures a chemical classification or physical classification?

Answer 1

$$\begin{gathered} Puresubs\tan ceshasdistinctpropertiesandhaveacmpositionthatdoesnotvary. \\ Mixturesaretwoormoresubs\tan cesmixedtogether,sothattheirchemicalpropertiesof \\ thesubs\tan cesremainsame. \\ Soalltheseclassificationdoesnotdealanythingwithphysicalclassification.Allarechemical \\ classification. \end{gathered}$$