Steam expands adiabatically in a nozzle from inlet conditions of 900 kpa, 225 °c and a velocity of 70 m/s to a discharge pressure of 240 kpa where its velocity is 606 m/s. what is the state of the steam at the nozzle exit, and what is sc for the process?

How many liters of hydrogen gas will be produced at stp from the reaction of 7.179×10^23 atoms of magnesium with 54.219g of phosphoric acid (h3po4) the equation is 3mg + 2h3(> mg(po4)2+3h2

Astudent is trying to create a table that compares hypotheses, theories, and laws. hypothesis theory law do scientific researchers formulate it? yes yes yes does it explain why things happen? yes yes no yes yes yes is it used to make predictions? no yes yes which of the following questions would most likely fill the blank in the table? is it an intelligent guess? is it newly formulated? is it based on observations? has it been proved?

Elements in group 2 are all called alkaline earth metals. what is most similar about the alkaline earth metals?