HELP ASAP PLZ Ammonia is produced from hydrogen and nitrogen by the Fritz-Haber process, according to the following reaction: N2(g)+3H2(g)→2NH3(g) If 7.5×10^5 L of hydrogen are consumed, how many liters of ammonia are produced (at the same temperature and pressure)?

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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).