Metal Displacement Reactions Flashcards
All 4 cards in this deck
What are the steps to deduce an order of reactivity from reactions of metals with dilute acid?
e.g. silver: no change; iron: very slow bubbling; magnesium: steady bubbling
- Compare the rate/amount of effervescence: magnesium most, iron slow, silver none.
- More vigorous reaction = more reactive.
- List most to least reactive: magnesium, iron, silver.
When does a metal displace another metal from its salt solution?
When the added metal is more reactive than the metal in the salt.
e.g. zinc displaces copper from copper sulfate solution.Write the word equation for the reaction of magnesium with copper sulfate solution.
magnesium + copper sulfate → magnesium sulfate + copper
True or false? Copper displaces zinc from zinc sulfate solution.
False. Copper is less reactive than zinc, so no reaction occurs.