What causes a star to shine brightly? the color that is produced
the energy that is released
the amount of gravity that is present
the types of elements that are present

When a gasoline engine burns gasoline, what type of chemical reaction is occurring?

What factors contribute to the effect an environmental toxin has on the human body?

Which statement about relative potential energy of electrons is correct? a. an electron in the 2 p orbital of the second electron shell has more potential energy than an electron in the 2 s orbital of the second electron shell. b. an electron in the 2 p orbital of the second electron shell has more potential energy than an electron in the 3 p orbital of the third electron shell. c. an electron in the 3 p orbital of the third electron shell has more potential energy than an electron in the 2 p orbital of the second electron shell.