Calculate the enthalpy of the reaction h2(g) f2(g) → 2hf(g) using bond enthalpies and compare this value to the result obtained by using the standard enthalpies of formation.

‘which reaction would most likely require the use of an inert electrode?

All of the following are homogeneous mixtures except a) sugar dissolved in water. b) orange juice. c) coffee with cream. d) household vinegar. e) apple juice

Covalent bonds generally form when the bonded elements have a difference in electronegativity less than 1.5. subtract the electronegativities for the following pairs of elements and predict whether they form a covalent bond. electronegativity difference of c and c: ionic covalent electronegativity difference of mg and cl: ionic covalent