Calculate the heat of the reaction using average bond dissociation energies ch₄ + 2o₂ ⇒ co₂ + 2h₂o i really don't understand this college chemistry question. it's due tonight! you to anyone who can explain and answer.

Forming chemical bonds releases energy whereas breaking them requires an input of energy.

Typical chemical reaction involves breaking preexisting bonds and forming new ones. The amount of energy absorbed in the first process is not necessarily equal to the energy released in the second. Depending on the relationship between the two energies, their difference is either released or absorbed in the chemical reaction.

Start by identifying bonds broken and formed in this chemical process:

Bonds Broken per reaction:

Bonds Formed per reaction:

Referring to a thermodynamic data table of bond energies,

Note that due to the conservation of energy, the energy required to break a chemical bond shall be the same as the energy released on its formation.

3460 kJ, the energy released in the formation of bonds is greater than 2652 kJ, the energy absorbed to break bonds in the reactant. The energy change is thus positive and 808 kJ of energy is released per mole reaction.

- "the choice that is not an indicator of a chemical change is "state of matter changes". more common than not, chemical reactions produce energy in the form of light or heat. along with energy, they also produce a new substance called the product that could be in any state of matter (solid, gas, or liquid)."

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