A sample of 653 mL of drinking water is found to contain 38.0 mg Pb. What is this concentration in parts per million?

He table below gives the atomic mass and relative abundance values for the three isotopes of element m. relative abundance (%) atomic mass (amu) 78.99 23.9850 10.00 24.9858 11.01 25.9826 what is the average atomic mass (in amu) of element m? 2.86 5.36 24.30 24.98

Which element is least likely to undergo a chemical reaction

37.0 °c = °f (human body normal temperature)