What change in states of matter is occurring at point B on the graph if thermal energy is increasing?

Vaporization

Sublimation

Melting

Freezing

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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]

There are main groups in the modern periodic table of elements