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Criado por Sheila Reantaso
aproximadamente 8 anos atrás
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Questão | Responda |
What is an indicator? | A substance that changes colour when placed into an acid or base. |
What are NATURAL and INDUSTRIAL sources of sulfur dioxide (SO2)? | NATURAL - geysers, geothermal hot springs, volcanic gases INDUSTRIAL - burning of fossil fuels, smeltering and refining of sulfide ores |
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