moles of KCl are dissolved in 275.0 mL to make a 2.5 M KCl solution. (Round atomic masses to the nearest whole number. Include 3 sig figs total in your answer.)

Which type of orbits are found in the principal energy level n = 2 a - s b - s, f c - s, d d - s, p e - s, p, d

Between 2014 and 2016, more than 25,000 children in flint, michigan, drank water that was contaminated with lead from lead pipes. during this time, the city claimed the water was safe to drink. which of these actions could the city have taken to ensure that the drinking water was free from lead?

What type of electromagnetic radiation has a shorter wavelength than blue light