Chemistry, 12.12.2020 16:50 littlelyna2love

The equation below represents the combination of gaseous atoms of non-metal X and hydrogen to form gaseous X2He6 molecules. 2X(g) + 6H(g) → X2H6(g) AH = -2775 kJ mol

The bond energy of an X-H bond is 395 kJ mol.

What is the bond energy of an X-X bond?

A - 405.0kJmol-¹

B B -202.5kJmol-¹

C +202.5kJ mol-¹

D D +405.0kJ mol-¹

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