How to balance equations?

Balancing equations is making sure that all atoms, ions and charges have the same count on both sides of the equation. We start with checking metals, hydrogen and lastly oxygen and charges. In order to balance the count we put coefficients before the give species.

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Propane and Chlorine react in the presence of UV light to give 2-chloropropane and HCl. Estimate the enthalpy change of this reaction using the following bond enthaplies (KJ/mol) : C-H=+413, Cl-Cl=+243, C-Cl=+346 and H-Cl=+432.


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How can pressure affect the equilibrium shift of a reversible gaseous reaction?


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