SCIENCE
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Acetylene is burned in welding torches according to the following chemical reaction:2 C2H2 + 5 O2
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10
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5
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8
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2
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Explanation:
Detailed explanation-1: -The combustion of acetylene is described by the balanced chemical equation. 2C2H2 gas plus 5O2 gas react to form 4CO2 gas plus 2H2O gas.
Detailed explanation-2: -Acetylene (C2H2 C 2 H 2 ) gas is often used in welding torches because of the very high heat produced when it reacts with oxygen gas, producing carbon dioxide gas and water vapor.
Detailed explanation-3: -The balanced chemical reaction in Equation 2 represents the complete combustion of acetylene to produce carbon dioxide and water.
Detailed explanation-4: -When acetylene, C2H2, is burned in oxygen, carbon dioxide and steam are formed.
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