Rank the reactivity of carboxylic acid derivatives in the order of decreasing reactivity. (1 Point)
A propanamide » ethyl ethanoate > butanoyl bromide > ethanoic methanoic anhydride
B. butanoyl bromide ethanoic methanoic anhydride > ethyl ethanoate > propanamide
C. propanamide » ethyl ethanoate > butanoyl bromide > ethanoic methanoic anhydride
D. ethanoic methanoic anhydride > propanamide > ethyl ethanoate > butanoyl bromide​

50 pts plz what is the physical state of matter of baking soda.

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.

How can one make a supersaturated solution? (apex)