The gold object being tested
is scraped on the touchstone. Then, acid
is poured onto the str...
Chemistry, 27.10.2021 01:00 shannongray23402
The gold object being tested
is scraped on the touchstone. Then, acid
is poured onto the streak. Why do you
think that the more gas bubbles the streak
produces, the lower the purity of the gold?
Answers: 2
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