What is the pH of a solution with the following concentration? (Round to 2 decimal places) 1.0 x 10-3 M HCl

Y=‐1x + 7 if y has a value of ‐24 what is the value of x?

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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.