| 11. | Water Vapor is a product of combustion reactions .-- Diletante 22 : 12, 26 February 2007 ( UTC)
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| 12. | They're designed to operate at 99 percent efficiency or above, which destroys most of the products of combustion.
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| 13. | Gas dryers must always be vented outdoors, as the products of combustion are mixed with the moist air.
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| 14. | Most of the PM2 . 5 fraction is caused by by-products of combustion, which may contain more carcinogens.
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| 15. | Some of these substances are absorbed by tobacco plants from the soil, while others are products of combustion.
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| 16. | Volcanic ash is not the product of combustion like the fluffy ash from a wood stove or charcoal barbecue.
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| 17. | Nitrogen oxide, a chemical by-product of combustion, forms ozone when exposed to hot sun, and can increase water's acidity.
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| 18. | :( ec )'Burnt'usually implies that there are products of combustion ( or pyrolysis, if in a low-oxygen environment ) present.
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| 19. | Developed under Johann Joachim Becher and Georg Ernst Stahl, phlogiston theory was an attempt to account for products of combustion.
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| 20. | Vented : Products of combustion are vented outside the home through natural draft, requiring a pipe or chimney through the roof.
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