a flask contains a gas mixture of hydrogen and nitrogen. the total pressure of the mix is 2.0 atm. the partial pressure of the hydrogen is 0.8 atm. what is the partial pressure of the nitrogen?

a. 0.8 atm
b. 1.2 atm
c. 2.0 atm
d. 2.8 atm

Aaspirin has a density of 1.40 g/cm^3 what is the volume in cubic centimeters of a tablet weighing 320 mg?

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.

Can someone me with 6 to 10 plz this is for masteries test.