Determine Which of the Following Pairs of Reactants Will Result

question 21

Multiple Choice

Determine which of the following pairs of reactants will result in a spontaneous reaction at 25°C.

• A)Sn⁴⁺(aq)+ Mg(s)
• B)Cr³⁺(aq)+ Ni(s)
• C)Zn(s)+ Na⁺(aq)
• D)Fe(s)+ Ba²⁺(aq)
• E)None of the above pairs will react.

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A study design where participants are randomly allocated to receive one of several clinical interventions, one of which may be a standard treatment or a placebo, to determine the efficacy of interventions.

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