The process that fuels a star is BEST described as A)
helium molecules being burned by fire.
B)
fusion of helium molecules to form hydrogen.
C)fission of helium molecules to form hydrogen.
D)
hydrogen molecules being forced together by gravity.

Which of these is a physical property

Which statement about hf is true? it is zero for any compound in its standard state. it is positive when the bonds of the product store more energy than those of the reactants. it is negative when a compound forms from elements in their standard states. it is zero for any element that is in the liquid state.

What does an electron configuration for an atom relate to the atoms placement on the periodic table