It is a mutation of the gene that makes hemoglobin, hemoglobin is a protein that carries oxygen in red blood cells.
It comes to from the chemical reaction itself. Exothermic reaction release heat because the energy level of the products is lower than that of the reactants. Therefore, the net enthalpy change of the reaction is negative (-), meaning heat or light (or any other form of energy) is released into the environment. An example of an exothermic reaction is the combustion of fuel.
This type of reaction is called: Synthesis
Answer:
measuring the mass of metal used in a reaction
mass is the answer 110% sure hope this helps
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