Methane (ch4) is the main component of natural gas. it is burned for fuel in a combustion reaction. the unbalanced combustion reaction for methane is shown below. ch4 + o2 co2 + h2o + heat when the reaction is balanced, how many carbon dioxide molecules are produced for every methane molecule burned?

1 molecule of carbon dioxide is produced for every methane molecule.

Explanation:

According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.

The balanced chemical reaction for combustion of methane is:

Thus for every 1 molecule of methane used 1 molecule of carbon dioxide is produced.

Explanation:

A carbon-12 atom has a mass defect of 0.09564 amu. What is its nuclear binding energy? Round to 3 significant figures. x 10 J per carbon-12 atom

First use the formula;

1 amu =934 MeV

therefore 0.09564 will have

934 x 934

= 89.3 MeV