Why sodium is more electropositive than chlorine?​

Electronegativity is high because the halogen has a large, unshielded nuclear charge. Sodium is a metal and metals tend to be low in electronegativity

Explanation: Halogen has a large, unshielded nuclear charge which is why the electronegativity is high. Sodium is metal so it tends to be low in electronegativity.

Explanation:

This electropositivity is high because the halogen has a large, unshielded nuclear charge. Sodium is a metal and metals tend to be low in electronegativity (they like to give away their electrons). Chlorine, similar to oxygen, likes to take and keep electrons.

answer: the value of enthalpy change will be -152.80 kj.

solution:

pressure = 1atm , temperature = = 298 k

given that pressure and temperature are same in both gases , the number of moles of both gases can be determined by the ideal gas equation.

according to reaction 3 moles no are reacting with 1 mol of ,then 0.49 mol of no will react with moles of ozone that is 0.16 moles of ozone. since, no is limiting reagent and is an excessive reagent.

enthalpy change for the reaction between the given volumes of the gases is :

a is the correct answer