What aspect of a substance contributes to a high or a low entropy?

In the following redox reaction which is the oxidizing agent and which is the reducing agent? alcl3 + na nacl + al

How many moles of carbon dioxide will form if 2.5 moles of c3h8 is burned

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.