NEED HELP ASAP Calculate the equilibrium concentrations of H2, I2 and HI at 700.K if the initial concentrations are [H2] = 0.400M, [I2] = 0.400M. The equilibrium constant Kc for the reaction is 57.0 at 700K.

It is a mixture. simply put, a compound must be pure, that is, of only one chemical structure and composition. a mixture is made of different chemical substances (i.e. elements, molecules, compounds) that are not chemically bonded to each other, but instead physically grouped together, as in the case of gasoline (a homogeneous solution).

Apipe hope this . brainliest?

Solar thermal energy and solar electric energy

Most elements have more than one naturally occurring isotope. as you learned previously, the atoms of those isotopes have the same atomic number (number of protons), making them belong to the same element, but they have different mass numbers (total number of protons and neutrons) giving them different atomic masses. so which mass is put on the periodic table for each element? is it the most common isotope’s mass? the heaviest mass? this activity will answer that question.