The accepted value of a measurement is 3.65 cm a student measured 3.93 cm. what is the percent error of the students measurement? 1. 7.12%
2. 7.67%
3.22.8%
4.23.3%

Which of the following ocean acidification? are the most likely side effects of a ph less than 7.0 in the ocean b. more metal salts altering the ocean chemistry c. dissolution of the shells of marine organisms d. both a & b e. all of the above.

You encounter a solution that is acidic and you decide to test it by adding a small amount of a strong acid. the ph lowers slightly but is approximately unchanged, and still remains acidic. what can you say about the solution? a. it is a buffer solution. b. it is not a buffer solution it is a strong acid solution. d. the solution has been neutralized. e. the solution has excess acid present

Stage in which a star’s outer layers have started to cool and grow outward?