Help please, just mind the fact that I have an X on something that was on accident and forget the evidence cards that I have it’s probably incorrect. I need to know which evidence cards support which claim and the reason. Claim 1: There is frozen water in tank 2, which is blocking some of the oxygen from going into tank 3.

Claim 2: Some of the liquid oxygen evaporated in tank 3.

Claim 3: Some of the oxygen didn’t condense in tank 2.

What pressure will be exerted by 0.675 moles of a gas at 25*c if it is in a 0.750-l container?

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.

Which substance has non polar covalent bonds