EXPLAIN Describe the patterns you see among the chemical formulas. How does the placement of the elements on the periodic table appear to relate to the numbers in the chemical formula?

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]

Find the mass, in grams, of 5.00*10^23 molecules of f2

The energy that powers a hurricane is derived from