In a mixture of n2 and o2 gases, the mol fraction of n2 is found to be 0.700. the total pressure of the mixture is 1.42 atm. what is the partial pressure of o2 in the mixture?

What is a possible quantum number set for an electron in the 3s orbital of a magnesium atom

Iron (fe) reacts with copper sulfate (cuso4) to form iron (ii) sulfate. in this reaction, cu2+ gains electrons to form cu. which statement is true about this reaction? fe(s) + cuso4(aq) → feso4(aq) + cu(s)

Which best describes the activation energy of a chemical reaction? a. the combined energy of all the reactants b. the amount of energy required for a reaction to occur c. the difference in energy between products and reactants d. the potential energy stored in the bonds of reactants and products