The microstructure of an iron-carbon alloy consists of proeutectoid cementite and perlite; the mass fractions of these microconstituents are 0.11 and 0.89, respectively. determine the concentration of carbon in this alloy.

Nuclear fusion is the source of energy for stars. besides hydrogen, which other element is most likely also common in stars?

What is a metal replacement reaction

How does a catalyst increase the speed of a reaction? a. the catalyst eliminates the activated complex stage, allowing products to form immediately. b. the catalyst lowers the energy level of the reactants, making it easier for them to react. c. the catalyst makes it easier for the activated complex to form, lowering the activation energy. d. the catalyst raises the energy level of the products, making the reaction finish sooner. reset next