> Acetylene (C2H2) undergoes combustion in excess oxygen to generate gaseous carbon dioxide and water. Given AHYCO2) = -393.5 kJ/mol AHH2000)-241.8 kmol and AHC2H2 - 226.6
kJ/mol, how much energy is released when 10.5 moles of acetylene is burned?

A- 52.700
B- 13.200K
C- 9,050
D- 26,400

Describe the chemical reaction based on the chemical equation below. also, explain whether the equation is balanced.

Astudent made the lewis dot diagram of a compound shown. what is the error in the lewis dot diagram? a)an o atom should transfer all of its six electrons to mg because the formula is mgo b) both electrons of mg should be transferred to one o adam because the formula is mgo c) the electrons should be transferred from each o add him to capital mg because mg has fewer electrons d) the number of dots around mg should be four because it has to transfer two electrons to each o

The fact that the total amount of energy in a system remains constant is a(n)