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12. complete each of the following word equations for synthesis reactions. a. sodium + oxygen -> b. magnesium + fluorine -> 13. complete and balance the equations for the decomposition reactions. a. hgo -> [with the triangle heat symbol above the arrow] b. h2o(l) -> [with "electricity" written above the arrow]

Frictional forces acting on an object are often converted into energy, which causes the temperature of the object to rise slightly.

What are the first three quantum numbers for the electrons located in subshell 2s?