g You have a sample of benzophenone that you think is contaminated with benzoic acid. Thinking back over the whole semester, identify two techniques that you could use to identify if the sample was contaminated. Once you have identified the techniques, briefly describe how the results would differ if the sample was pure vs. contaminated.

the old alchemists made significant contributions to science even though there starting premises were off a bit. their conclusions after failure would steer them into better directions for investigation. science is no more than close observation and the initial mistakes result in rethinking and retrying experiments.

1.solid

2.carbon dioxide

3.helium