Explain in terms of the Law of Conservation of Mass why the mass of a rusted nail is grater than the nail before rusting.

How does a scientist the government? a. the scientist tells people in society what to do. b. the scientist determines the policies that the government spends money on. c. the scientist provides unbiased information to the government. d. the scientist makes laws based on his or her research results.

Answer asap need by wednesday morning calculate the ph of 0.16m ch3cooh which has ka = 1.74 x 10-5 mol dm-3 best answer will be brainliest

Draw the aromatic compound toluene (methylbenzene). show all hydrogen atoms, including those on the ring.