A correct formula must:
Correct answer: D. Always conforms to the law of multiple proportions
- A. Be balanced with proper coefficients
- B. Always have subscripts
- C. Always conform to the valency rules
- D. Always conforms to the law of multiple proportions
Explanation
A correct formula must follow the law of multiple proportions. The law of multiple proportions states that if two elements form more than one compound, then the ratios of the masses of the second element which combine with a fixed mass of the first element will always be ratios of small whole numbers.
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About Chemical Equilibrium
Reversible reactions reach dynamic equilibrium when forward and reverse rates become equal, and Le Chatelier's principle predicts the effect of changing concentration, pressure or temperature. The chapter also covers solubility product, the common ion effect, buffer action and the conditions used in Haber's process, with equilibrium shifts distinguished from changes in the equilibrium constant.
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