Which process best describes the cause of lightning

Which is the separation technique that identifies parts of a mixture based on how fast different compounds move across a material? a. filtration c. chromatography b. distillation d. crystallization

Based on the standard free energies of formation, which of the following reactions represent a feasible way to synthesize the product? A. 2C (s) + H2 (g) ? C2H2 (g); ? G? f=209.2 kJ/mol B. C (s) + O2 (g) ? CO2 (g); ? G? f=?394.4 kJ/mol C.

Nitrogen dioxide dimerizes to give dinitrogen tetroxide: 2NO2 (g) → N2O4 (g). At 298 K, 12.55 g of an NO2/N2O4 mixture exerts a pressure of 0.963 atm in a volume of 6.92 L. What are the mole fractions of the two gases in the mixture?

In clinical applications, the unit ppm (parts per million) is used to express very small concentrations of solute, where 1 ppm is equivalent to 1 mg of solute per 1 L of solution.

The standard enthalpy of formation for glucose [c6h12o6 (s) ] is - 1273.3 kj/mol. what is the correct formation equation corresponding to this δhof? the standard enthalpy of formation for glucose is.

What is the difference between parent geometry and actual geometry

The volume of a gas is halved and the temperature is unchanged. The pressure of the gas is

Suggest what happens to the other elements from which bread and wood are made when these substances are burned

What is the formula mass of ethyl alcohol, C2H5OH

Which type of bonds or interactions between atoms is the strongest?