Which chemical equation follows the law of conservation of mass?
OA. LIOH + H₂CO3 → Li₂CO3 + 2H₂O
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OB. 2LIOH + H₂CO3 → Li₂CO3 + H₂O
OC. 2LIOH + H₂CO3 LICO3 + 2H₂O
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OD. 2LIOH + H₂CO3 → Li₂CO3 + 2H₂O