The answer is Smog, hope this helps! pls mark brainliest! thanks!
Answer:
A. we can use sulfuric acid to prepare PbSO4
Answer: After three half-lives 1/8 (12.5%) of the original sample remains
Mass = number of mol x molar mass
Mass = 0.28mol x 55.8g/mol
Mass = 15.624g
