Michelle carries out the test on zinc and lead. Justin carries out the test copper and aluminium. Michelle uses dilute hydrochloric acid and Justin uses very dilute sulfuric acid for his tests.
Explain why Michelle and Justin cannot use their observations to decide if copper or aluminium are more or less reactive than zinc and lead.
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they can not use their observation to compare copper, aluminium, zinc and lead because the two students have used different types of acids.The acids are also of different concentration and volume, so then of course we cant differentiate with their level of reactivity
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