0. 028 mol of gas at initial temperature of 150∘c is compressed, using this process, from 450 cm3 to 200 cm3. How much work is done on the gas?.

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 of the following units is not an official si unit? mole liter kilogram ampere

Identify the lewis base in this balanced equation: fe3+ h2o fe(h2o)63+