You add 21.00 ml of a 1.50 m solution to a 100 ml volumetric flask and then fill the flask with water to the 100 ml mark. what is the resulting concentration of sodium phosphate in molarity?

1) how many electrons are in each energy level of the following elements? a. he b. na c. na d. ne 2) how many valence electrons are percent in the following atoms? a. s b. mg c. be d. cl 3) which of the following elements are stable as atoms? a. he b. o c. cl d. ar if you are able to provide the work as to how you got the answers that would be greatly appreciated. : )

Determine the mass of fuel required for the expected energy consumption in the united states for the next ten years. energy use per person per year in the united states = 3.5 x 1011joules base calculations on current population of 310,000,000.

Nuclear fusion is the source of energy for stars. besides hydrogen, which other element is most likely also common in stars?