what is the number of the photons of light with a wavelength of a 4000 PM that provide 1 joule of energy

If 10.g of agno3 is available, what volume of 0.25 m agno3 can be prepared

H2so4(aq) + mg(s)—> mgso4(aq) +h2(g) which substance is the acid in the reaction?

Which of the following is true about a carbonated soft drink? . the carbon dioxide is the solvent, and water is the solute.. the water is the solution, and carbon dioxide is the solvent.. the carbon dioxide is the solution, and the water is the solvent.. the water is the solvent, and the carbon dioxide is the solute.. .