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Consider the Reaction Between Acetylene, C2H2, and Oxygen in a Welding

Question 14

Multiple Choice

Consider the reaction between acetylene, C2H2, and oxygen in a welding torch: 2C2H2(g) + 5O2(g) →\rightarrow 4CO2(g) + 2H2O(g) Which of the following is not conserved in this reaction?


A) atoms
B) moles of atoms
C) moles of molecules
D) mass

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