A student builds an electromagnet using a battery and coiling wire around a nail. The student observes that the electromagnet attracts pins.

Describe the particles of all three phases of matter in the root beer float. (how are the particles arranged and moving? )

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.

How many atoms of mg are present in 97.22 grams of mg? 6.022 × 1023 2.408 × 1024 4.818 × 1024 5.855 × 1025