Na2S(aq)+Pb(NO3)2(aq)→NaNO3(aq)+PbS (s) Express your answer as a chemical equation. Identify all of the phases in your answer.

Assignment directions: pick one of the following chemists and perform a bit of research on him/her. answer the following questions. alice hamilton             rosalind franklin marie curie             gertrude b. elion ada yonath             henry cavendish robert boyle             antoine lavoisier mario j. molina             svante arrhenius