weight of tube with iron filings and sulphur AFTER heating and reacting see AWT79P for BEFORE heating
weight of tube with iron filings and sulphur AFTER heating and reacting see AWT79P for BEFORE heating
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Keywords: balance, chemistry, conservation, experiment, filings, iron, laboratory, law, mass, pan, reaction, school, science, sulfide, sulphide, sulphur, test, top, tube, weigh