N2 + 3H2 2NH3 How many grams of NH3 can be produced from the reaction of 28 grams of N2 and 25 grams of H2? How much of the excess reagent is left over?

According to the passage, which of these is true about gray water systems? a) gray water systems use plants that require less water. eliminate b) gray water systems require the use of less fossil fuels. c) gray water systems reduce the amount of fresh water used. d) gray water systems reduce the amount water used by shower heads.