g a water sample is collected from a well and Radon-222 is found in the water. You measure 99.21875 mg of Polonium-218 to every 0.78125 mg of Radon-222. How long has the sample been contaminated for

Rays from the sun are not considered matter true or false

Which of the following changes will decrease the total amount of gaseous solute able to be dissolved in a liter of liquid water? (2 points) decreasing temperature decreasing pressure decreasing surface area decreasing solute concentration

If i had 2 m naoh solution, what does the 2 m stand for? 2 molar, but 2 of a solute in 1