The accurate answer is
<span>b) Protoporphyrin is bound to a single iron atom in its Fe+3 state
Explanation:
</span>Protoporphyrin is bound to a single iron atom in its Fe+2<span> state.</span>
Answer:
The temperature of the water increases because the average
kinetic energy of the water molecules increases.Explanation:
The reactions based on the absorption and release of the energy are called endothermic and exothermic reactions. The reaction is exothermic.
<h3>What is an exothermic reaction?</h3>
Exothermic reactions are the reaction in which the reactant produces products that release energy from the system to the surroundings. In the reaction bond energy of the reactant is less than the product.
Energy from the system is released in the form of heat, sound, light and electricity. The weak bonds of the compounds are replaced with stronger ones and the standard enthalpy of the reaction is negative.
Therefore, option c. reaction is exothermic is correct.
Learn more about the exothermic reactions here:
brainly.com/question/26616927
Kg is the abbreviation for an SI unit of mass, which is kilogram
