The table shows the thermodynamic data for a reaction. Thermodynamic Data
Energy of the Reactants Energy of the Products Activation Energy
−420 kJ −240 kJ −310 kJ

Which of the following statements explains if the reaction is endothermic or exothermic?

a small container that holds a source of energy a solar cell that captures light energy and converts it into electricity a voltaic cell that uses the oxidation of a fuel to produce electricity

explanation:

the atomic number will stay the same no matter how many electrons it has, so it doesn’t decrease nor increase. it’ll only change with a different number of protons