O Level Chemistry MCQs – Certification Test 412

Chemical Equations Quiz (Question 412) – Study App & e-Book Download

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MCQ 412: In writing chemical equations, the inclusion of state symbols shall be done while the:

correct chemical formula of reactants and products are written
equation is being balanced to fulfill the law of conservation of mass
equation has been balanced
chemical formulae of products and reactants have been changed to bring about quick balancing

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