How many grams of NaCl are required to saturate 100 grams of H2O at a temperature of 15 degrees Celsius?

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.

If a solution had a ph of 7 what is the solution