What do the subscripts in the formula for ethane represent?
hн
ethane
н— cc — н
с. но
hн.

Summarize possible ways in which phases of matter could combine to form a solution.

How are isotopes of the same chemical element alike? how are they different?

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.