test tube heated over the fire spirit lamp burner chemistry scientific laboratory experiment combustion process |
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| navigate by keyword : burner flask heating experiment chemistry evaporation process laboratory lamp fire test scientific flame tube spirit combustion equipment research science glass education chemical liquid vector alcohol icon technology biology lab medical tool medicine reaction symbol background glassware bottle cartoon flat study burn beaker school isolated gas scientist container illustration |
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| Test tube is heated over the fire of a spirit lamp, a burner. Chemistry, Scientific laboratory experiment. Combustion process, heating. Evaporation process. |
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