Which is classified as nonpolar covalent? 1) hydrogen and iodine
2) carbon and sulfur
3) hydrogen and chlorine
4) nitrogen and hydrogen

Flourine is found to undergo 10% radioactivity decay in 366 minutes determine its halflife

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.

Which statement correctly identifies the scientific question and describes why the question is scientific? question 1 refers to the supernatural.question 2 reflects a moral or social value.question 3 refers to something that can be measured.question 4 reflects a question that can’t be observed.