Estimate the change in enthalpy and entropy when liquid ammonia at 270 k is com- pressed from its saturation pressure of 381 kpa to 1200 kpa. for saturated liquid ammonia at 270 k, v = 1.551 x 10-3 mkg-1, and f = 2.095 x 10-'ki

Select all of the methods through which a drug can enter your body. injection swallowing inhalation absorption

Ageochemist examines a piece of metal that he found in the soil. he performs tests to identify the metal from its density, electrical conductivity, and melting point. which statement best describes his investigation? a. he is determining physical properties that are sufficient to identify the metal.b. he is determining chemical properties that are sufficient to identify the metal.c. he is determining physical properties that are insufficient to identify the metal.d. he is determining chemical properties that are insufficient to identify the metal.

Ammonium perchlorate nh4clo4 is the solid rocket fuel used by the u.s. space shuttle. it reacts with itself to produce nitrogen gas n2 , chlorine gas cl2 , oxygen gas o2 , water h2o , and a great deal of energy. what mass of nitrogen gas is produced by the reaction of 2.1g of ammonium perchlorate?