Four different metals are each reacted with the same volume of dilute hydrochloric acid. The outcomes of the reactions are shown below. metal / rate of effervescence: calcium - very high copper - none iron - low magnesium - high What is the sequence of reactivity for these four metals, beginning with the most reactive?
- Airon → magnesium → calcium → copper
- Bmagnesium → calcium → copper → iron
- Ccopper → iron → magnesium → calcium
- Dcalcium → magnesium → iron → copper