How many grams of water vapor (H2O) will be produced when 1.18g of hydrogen gas (H2) reacts completely with oxygen gas (O2) according to the balanced equation?

Compare and contrast the bohr model and the electron cloud models of the atom.

Explain that newton first law,second law and third law of motion?

The content of manganese (mn) in steel was determined spectrophotometrically and with the use of the standard addition method. an unknown sample of mn from a digested steel sample gave an absorbance of 0.185 when analyzed spectrophotometrically. when 5.00 ml of solution containing 95.5 ppm mn was added to 50.0 ml of the unknown steel solution (digested sample), the absorbance was 0.248. calculate the concentration, in parts-per-million (ppm), of mn in the digested steel sample solution.