Ascientist measures the standard enthalpy change for the following reaction to be 81.1 kj : 2co2(g) + 5 h2(g)c2h2(g) + 4 h2o(g)based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of co2(g) is

The enthalpy of the formation of is coming out to be -410.8 kJ/mol.Z

Explanation:

Enthalpy change is defined as the difference in enthalpies of all the product and the reactants each multiplied with their respective number of moles. It is represented as

The equation used to calculate enthalpy change is of a reaction is:  

For the given chemical reaction:

The equation for the enthalpy change of the above reaction is:

We are given:

Putting values in above equation, we get:

Hence, the enthalpy of the formation of is coming out to be -410.8 kJ/mol.

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.

bcde is the incorrect answer it is a