The hrxn of formation of carbon dioxide is negative. which statement is true? the reaction is endothermic. the reaction is exothermic. the amount of carbon dioxide is more than the amount of reactants. the amount of carbon dioxide is less than the amount of reactants.

 The  Hrxn  of  formation   of carbon dioxide is  negative,  the   statement   which is true  is

            The  reaction is exothermic

Explanation

Exothermic  reaction is  a   chemical reaction in which  releases energy  through   light  or  heat.  

Example  of exothermic  reaction  is combustion  reaction  and  CO2  is  produced  when  organic  molecules undergo combustion.

  The  enthalpy of  formation  of carbon dioxide   is  lower  than  enthalpy  of the  reactants   of the system   therefore  the  negative  sign.

the answer is d.) potassium

answer; 4 electrons;