Adam is trying to identify a solid. he places a small amount of the substance in an acid solution and observes whether or not a reaction takes place. this test is based on a chemical property.
A chemical property is the property of the substance that will be observed in a chemical reaction. the some of the examples of the chemical property is like toxicity , oxidation states, heat of combustion, enthalpy of formation, flammability, coordination number, reactivity, chemical bonds , the chemical stability etc.
Thus, the given test is based on the chemical property as he place the sample in the acid solution and observes the reaction is taking place or not.
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