Answer:
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Explanation:
Answer: E. none of these
Explanation: because the f-block element is n-2
Answer: To calculate the enthalpy of combustion of acetylene, C2H2 , all you have to do is ... More specifically, you need to subtract from the sum of enthalpies of ... chemical reaction has 2 moles of C2H2 reacting to produce 2 moles of ... since the heat of combustion is expressed as energy per mole
elements like carbon ,nitrogen, sulfur and oxygen and etc are most likely to form covalent bonds
