Displacement reactions Flashcards
What’s the method for a reactivity series investigation?
Method: Put a bit of metal into some salt solutions and see what happens.
What equipment is needed for the reactivity series investigation?
5 test tubes, A salt solution, a bit of metal
In the first test tube the salt solution used is copper sulfate and the metal is magnesium, will it deposit?
yes, deposit of copper
In the second test tube the salt solution used is zinc sulfate and the metal is magnesium, will it deposit?
yes deposit of Zinc
In the third test tube the salt solution used is copper sulfate and the metal is iron, will it deposit?
yes, deposit of copper
In the third test tube the salt solution used is copper sulfate and the metal is iron, will it deposit?
yes, deposit of copper
In the fourth test tube the salt solution used is iron sulfate and the metal is zinc, will it deposit?
yes, dull deposit of iron
in the fifth test tube the salt solution is zinc sulfate and the metal is copper, Will it deposit
No deposit
explain what happens to the first solution.
(magnesium and copper sulfate)
The copper sulfate goes colourless and the copper coats the magnesium strip since magnesium is more reactive than copper.
Write the word equation for the magnesium and copper sulfate investigation.
magnesium + copper sulfate → magnesium sulfate + copper
explain what happens to the second solution.
(Magnesium and zinc sulfate)
since magnesium is more reactive than zinc, the zinc is seen coating the magnesium strip.
Write the word for the magnesium and zinc sulfate solution
Magnesium + zinc sulfate → Magnesium sulfate + zinc
explain what happens to the third solution
(iron and copper sulfate
the copper sulfate solution goes green. Since iron is more reactive than copper, the copper is seen coating the iron nail.
Give the word equation for the iron and copper sulfate investigation.
Iron + copper sulfate → iron sulfate + copper
explain what happens to the fourth investigation
(zinc and iron sulfate)
the iron is seen coating the zinc strip since zinc must be more reactive than iron as it takes its place
Write the word equation for the displacement reaction of the metal zinc and the salt solution iron sulfate
zinc + iron sulfate → zinc sulfate + iron
Explain what happens to the 5th investigation of the metal copper and the salt solution zinc sulfate.
since zince is more reactive than copper, copper can’t displace therefore there is no deposit
Write the word equation for the metal copper and the salt solution zinc sulfate
copper + zinc sulfate → now way
out of all the reactivity series investigations which one reacted the most?
(Magnesium, zinc, iron, copper)
Magnesium
out of all the reactivity series investigations which one reacted the least?
copper
