How can you calculate how to make a solution of a specific concentration?

The variability in marine salinity between habitats does not impact the fish living there. select the best answer from the choices provided t f

What is the approximate vapor pressure when the gas condenses at 70 degrees celsius

Dumbledore decides to gives a surprise demonstration. he starts with a hydrate of na2co3 which has a mass of 4.31 g before heating. after he heats it he finds the mass of the anhydrous compound is found to be 3.22 g. he asks everyone in class to determine the integer x in the hydrate: na2co3·xh2o; you should do this also. round your answer to the nearest integ