In this lab, you will need 18ml of a 0.020 mol/L solution of KIO3 (aq) (potassium iodate). what mass of solid KIO3 needs to be measured out to prepare this solution? (3 marks)

How does decreasing the gas volume affect the pressure of a gas?

How many moles of gas are present if p=11 atm, v=12l, t=185k?

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.