Calculate the pressure in atm exerted by 1.39 moles of unknown gas kept in a vessel of volume 6.09L at 55°C.

7. what temperature is need to just dissolve 50 g of nh4cl in 75 g of water? '

The best solution for preventing harm to people and pets from severe hurricanes involves determining and warning residents about what

Look at the spectrums of a star moving towards earth and a motionless star. which of these is a correct inference that can be draw from the observation of the two spectrums? (2 points) the spectrum of a motionless star is difficult to be viewed separately using oridinary telescopes. the spectrum of a motionless star is identical to the spectrum of a star which moves towards earth. the spectrum of a star shifts towards the red region when the star moves towards earth. the spectrum of a star shifts towards the blue region when the star moves towards earth.