Benzyl alcohol reaction by H3 PO4 ​

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]

Based on the equation and the information in the table, what is the enthalpy of the reaction?

Use examples from the article to explain one positive and one negative effect that chemistry has had on society.