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The equation below represents the combination of gaseous atoms of non-metal X and of
hydrogen to form gaseous X2
H6 molecules.
2X(g) + 6H(g) → X2
H6(g) ∆H = –2775kJmol–1
The bond energy of an X–H bond is 395kJmol–1
.
What is the bond energy of an X–X bond?
A –405.0kJmol–1
B –202.5kJmol–1
C...
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