Question

rite an equation for the formation one mole of CaCO3(s) from its elements in their standard states. Write any reference to carbon as C(s). Express your answer as a chemical equation using fractional coefficients as needed. Identify all of the phases in your answer.

Answer 1

Answer: The chemical equation for the formation one mole of $CaCO3(s)$ from its elements in their standard states is $Ca(s)+C(s)+\frac{3}{2}O_2(g)\rightarrow CaCO_3(s)$

Explanation:

The standard enthalpy of formation or standard heat of formation of a compound is the change of enthalpy during the formation of 1 mole of the substance from its constituent elements, with all substances in their standard states.

The chemical equation for the formation one mole of $CaCO3(s)$ from its elements in their standard states is:

$Ca(s)+C(s)+\frac{3}{2}O_2(g)\rightarrow CaCO_3(s)$

where (s) represents solid state and (g) represents gaseous state.