33. With one exception, the standard heats of formation of Na(s), O2(g), Brz(D, CO(g),
Fe(s), and He(g) are identical.
What is the exception?
Explain.

The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.

Asubstance is a good conductor of electricity which of the following best explains a probable position of the substance in a periodic table

What is the most important factor in determining climates.