Which is an accurate description of what occurs when a log burns? a) energy is created as the log burns b) the compounds that make up the log are converted into fire, heat, and energy. c) as the log burns, the nuclear binding energy of the molecules in the log is released. the nuclear binding energy is transformed into the light and heat of the fire. d) the molecules present in the log are transformed into molecules that contain less energy than the original molecules. the energy difference is the heat of the fire.

The molecules present in the log are transformed into molecules that contain less energy than the original molecules. The energy difference is the heat of the fire.

Explanation:-

An endothermic reaction is a type of of chemical reaction in which energy is absorbed from the surrounding. The temperature of the surrounding decreases. In an endothermic reaction, the energy of the reactants is lower than the energy of the products. The difference in the energies of these two is the energy which was being absorbed for completion of reaction.

An Exothermic reaction is a type of of chemical reaction in which energy is released into the surrounding. The temperature of the surrounding increases. In an exothermic reaction, the energy of the reactants is higher than the energy of the products. The difference in the energies of these two is the energy which was being released on completion of reaction.

answer is: naturally occurring solid, inorganic compound or element is mineral.

minerals usually have crystalline form, that means than crystal constituents (atoms, molecules or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.

for example magnetite is a mineral of iron oxide (fe₂o₃).

calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (caco₃).

dolomite is an   carbonate mineral composed of calcium magnesium carbonate (camg(co₃)₂).