Question 21
Identifying a mystery metal. It is one of the metals in the reactivity series. You may observe its appearance and investigate reactions with water, oxygen and dilute acid; you must use some displacement reactions. Treat the unknown metal with care and handle it with forceps. Plan an investigation. Identify equipment and chemicals, write a step-by-step method and explain what information each test gives and how it helps identify the metal. Show your plan to the teacher for approval before carrying it out.
