From the given electron configurations, predict which one is for a representative element? A)1s22s22p63s23p64s2

B)1s22s22p63s23p63d74s2

C)1s22s22p63s23p63d64s2

D)1s22s22p63s23d5

What type of energy do chemical bonds have? what type of energy is it converted to during chemical reactions? question 15 options: chemical bonds have kinetic energy, which is converted to potential energy during chemical reactions. chemical bonds have electric energy, which is converted to potential energy during chemical reactions. chemical bonds have heat energy, which is converted to kinetic energy during chemical reactions. chemical bonds have potential energy, which is converted to heat energy during chemical reactions.

What is the enthalpy of combustion (per mole) of c4h10 (g)? –2,657.5 kj/mol –5315.0 kj/mol –509.7 kj/mol –254.8 kj/mol

Ahelium balloon contains 16.9 l of helium at stp. how many atoms of helium are in the balloon