Write the balanced chemical equation for the standard enthalpy of formation of n

Question

Write the balanced chemical equation for the standard enthalpy of formation of nickel(II) oxide. Include the phase labels. The arrow has been provided for you. Do not include charges.

standard the balanced chemical equation for the standard enthalpy of formation of nickel (II) oxide. Include phase labels. The arrow has been provided for you. Do not include charges. A Previous Check Answer Next Exit Hint Deduce the chemical formula of nickel (ll) oxide first. Then think about how to create nickel (ll) oxide using different elements and their quantities. The physical states of the elements should correspond to their standard states at 25 °C and 1 atm.

Explanation / Answer

For enthalpy, we must first identify the elemnts present

Nickel Oxide = Nickel (Ni) and Oxygen (O)

elemental states

- Ni(s)

- O2(g)

therefore, the unbalanced equation

Ni(s) + O2(g) --> NiO(s)

balance O

2Ni(s) + O2(g) --> 2NiO(s)

divide and balance O, since it must be a basis of 1 mol of NiO

Ni(s) + 1/2O2(g) --> NiO(s)

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