Which or these equations is balanced h2so4 + 2al > al2(so4)3 + h2 or 2kcl + pb(no3)2 > 2kno3 + pbcl2

Balancing of chemical equation is essential because of the law of conservation of mass, which states that the mass of a system can not be created or removed.

The second equation is balanced

This is because the number of elements of each atom in the product side equal the number of elements of each atom on the reactant side.

The first equation is not balanced

This is because there is 1 molecule of on reactant side as compared to 3 molecules of

To balance the equation we add a coefficient of 3 on sulphuric acid () and a coefficient of 3 on hydrogen ()

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there are no statements provided but here is why:

sulfur belongs to group 16 because it can be found in nature whether it is in a free or combined state.

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