Which element in each pair has a higher electronegativity value? a) CI, F
b) CAN
c) Mg, Ne
d) As, Ca

Determine the reaction and balance the following equations urgent due in the morning

Which of the following describes a compound? (hint: carbon and oxygen bo a. a piece of pure carbon, containing only carbon atoms b. oxygen gas surrounding a solid piece of carbon c. a substance made of two oxygen atoms for each carbon atom carbon and oxygen atoms mixed without being bonded together

Calculate the energy required to ionize a hydrogen atom to an excited state where the electron is initially in the n = 5 energy level. report your answer in kilojoules