what is the concentration (molarity) of a solution that has 0.150 moles of sodium chloride dissolved in 0.900 L solution

The density of the hydrocarbon in part (a) is 2.0 g l-1 at 50°c and 0.948atm. (i) calculate the molar mass of the hydrocarbon. (ii) determine the molecular formula of the hydrocarbon.

What is a sun spot? in the sun on the surface

Vaccination against the flu should be required

Why is a liquid able to flow

Which equation represents a chemical equilibrium? 1) N2 (l) N2 (g) 2) 2NO2 (g) N2O4 (g) 3) CO2 (s) CO2 (g) 4) NH3 (l) <--NH3 (g)

Balnce the following molecular equation and write net ionic equation NaOH+H2SO4-Na2SO4+H2

Describe in words the reaction represented by the equation and include a description of the composition of each kind of molecule 2h2+02=2h20

Potassium chloride, kcl, sodium sulfate, na2so4, glucose, c6h12o6, carbon dioxide, co2 and ammonium phosphate, (nh4) 3po4, are soluble in water.

Use the periodic table to select the element from the drop-down menu that has the correct relative electronegativity.

List the symbols for all the elements with electron configurations that end as follows. Each n represents an energy level.