A. Why is it necessary to balance a chemical equation?
B. Write the balanced chemical equation for the following reactions
i. Natural gas burns in air to form carbon dioxide and water. ii. During respiration, glucose combines with oxygen and forms carbondioxide and water along with the release of energy.
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The chemical equation needs to be balanced so that it follows the law of conservation of mass. A balanced chemical equation occurs when the number of the different atoms of elements in the reactants side is equal to that of the products side. Balancing chemical equations is a process of trial and error.
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