¿Cuántos litros de oxígeno en condiciones normales se producen a partir de 0,45 mol de O2?

The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.

Structure of the atoms: discovery of the nucleus in 1909i need answering all of these questions

Anyone who's in connections academy chemistry b have the factors that affect the rate of a reaction portfolio already done?