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אין תוצאות חיפוש עבור: results/Hydrocarbons_can_be_broken_down_(cracked)_to_produce_smaller__more_useful_molecules._This_process_involves_heating_the_hydrocarbons_to_vaporise_them_and_passing_the_vapours_over_a_hot_catalyst._A_thermal_decomposition_reaction_then_occurs.,3,0,7033;12264;12314,0,25,1,tn,1.html