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Which state symbol represents a substance in the solid state in a chemical equation?

Answer and explanation

Correct answer: (s)

The correct answer is A: (s). State symbols are short labels placed in brackets after formulas to show whether a substance is solid, liquid, gas, or dissolved in water. The letter s stands for solid; for example, CaCO₃(s) represents solid calcium carbonate. Option B, (l), means liquid. Option C, (g), means gas. Option D, (aq), means aqueous, so the substance is dissolved in water. These symbols describe physical condition and should not be confused with coefficients, which tell how many particles or moles participate in an equation. A useful memory cue is the first letter: solid begins with s, liquid with l, and gas with g. The special pair aq refers to an aqueous solution.

Related tags

Solid StateState SymbolsChemical EquationsClass 10 ScienceChemical Reactions And EquationsChemical Substances – Nature And BehaviourChemical Substances Nature And BehaviourScience

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