Why is lead not used for Morden water pipes

How many molecules of sucrose c12h22o11 are there in 454 grams of sucrose

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.

Which of the following would have less momentum than a 52 kg cheetah running at 10 m/s?