How many moles are in 200.0 grams of CCl^4

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

Which of the following statements about acidic water is true? a. acid has no effect on the h,o molecules. b. the solution contains a larger number of oh ions than h,o ions. c. the solution contains a larger number of h,o ions than qh ions. d. the solution contains an equal number of h,o ions and oh ions. none of the above e.

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