The total enthalpy of the products in a reaction is 0 kJ, and the total enthalpy of the reactants is 100 kJ. What is the ΔH for the reaction? Choose the correct answer. a.–393.5 kJ
b.–100 kJ
c.0 kJ
d.+100 kJ

b. -100 kJ

Explanation:

Heat of reaction is the energy released or absorbed during the course of the reaction. It is represented by the symbol .

= enthalpy of reaction = ?

= enthalpy of products = 0 kJ

= enthalpy of reactants = 100 kJ

Thus the ΔH for the reaction is -100kJ

jjj89t'ji; it hink the answer is your mom is not si

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