Can someone please draw 5 lab apparatus

I promise to give brainliest

Which statement is best described as a atom

Can someone me with questions 12 and 13 plz.

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.