What do animals use to get oxygen to every cell? O lungs
O red blood cells
O osmosis
Oall of the above

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?

The number to the right of an element's symbol (ex. c-12) identifies the of an isotope.

The molality of calcium chloride (cacl2) in an aqueous solution is 2.46 m. what is mole fraction of the solute?