The activation energy for the reaction no2 (g )+ co (g) ⟶ no (g) + co2 (g) is ea = 218 kj/mol and the change in enthalpy for the reaction is δh = -252 kj/mol . what is the activation energy for the reverse reaction? enter your answer numerically and in terms of kj/mol.

Explanation:

The activation energy represents the energy barrier that reagents must pass to transform into products (or products to transform into reagents in a reverse reaction)

For any reaction, the change in enthalpy is related to the activation energy by the equation

So, the activation energy for the reverse reaction is

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

that's it!

if you need further assistance, let me know: )

~ trueboss72

answer; the numbers of valence electrons in the acetic acid molecule (ch3co2h) is 24;