Displacement reactions

Question 1

What’s the method for a reactivity series investigation?

Answer 1

Method: Put a bit of metal into some salt solutions and see what happens.

Question 2

What equipment is needed for the reactivity series investigation?

Answer 2

5 test tubes, A salt solution, a bit of metal

Question 3

In the first test tube the salt solution used is copper sulfate and the metal is magnesium, will it deposit?

Answer 3

yes, deposit of copper

Question 4

In the second test tube the salt solution used is zinc sulfate and the metal is magnesium, will it deposit?

Answer 4

yes deposit of Zinc

Question 5

In the third test tube the salt solution used is copper sulfate and the metal is iron, will it deposit?

Answer 5

yes, deposit of copper

Question 6

In the third test tube the salt solution used is copper sulfate and the metal is iron, will it deposit?

Answer 6

yes, deposit of copper

Question 7

In the fourth test tube the salt solution used is iron sulfate and the metal is zinc, will it deposit?

Answer 7

yes, dull deposit of iron

Question 8

in the fifth test tube the salt solution is zinc sulfate and the metal is copper, Will it deposit

Answer 8

No deposit

Question 9

explain what happens to the first solution.
(magnesium and copper sulfate)

Answer 9

The copper sulfate goes colourless and the copper coats the magnesium strip since magnesium is more reactive than copper.

Question 10

Write the word equation for the magnesium and copper sulfate investigation.

Answer 10

magnesium + copper sulfate → magnesium sulfate + copper

Question 11

explain what happens to the second solution.
(Magnesium and zinc sulfate)

Answer 11

since magnesium is more reactive than zinc, the zinc is seen coating the magnesium strip.

Question 12

Write the word for the magnesium and zinc sulfate solution

Answer 12

Magnesium + zinc sulfate → Magnesium sulfate + zinc

Question 13

explain what happens to the third solution
(iron and copper sulfate

Answer 13

the copper sulfate solution goes green. Since iron is more reactive than copper, the copper is seen coating the iron nail.

Question 14

Give the word equation for the iron and copper sulfate investigation.

Answer 14

Iron + copper sulfate → iron sulfate + copper

Question 15

explain what happens to the fourth investigation
(zinc and iron sulfate)

Answer 15

the iron is seen coating the zinc strip since zinc must be more reactive than iron as it takes its place

Question 16

Write the word equation for the displacement reaction of the metal zinc and the salt solution iron sulfate

Answer 16

zinc + iron sulfate → zinc sulfate + iron

Question 17

Explain what happens to the 5th investigation of the metal copper and the salt solution zinc sulfate.

Answer 17

since zince is more reactive than copper, copper can’t displace therefore there is no deposit

Question 18

Write the word equation for the metal copper and the salt solution zinc sulfate

Answer 18

copper + zinc sulfate → now way

Question 19

out of all the reactivity series investigations which one reacted the most?
(Magnesium, zinc, iron, copper)

Answer 19

Magnesium

Question 20

out of all the reactivity series investigations which one reacted the least?

Answer 20

copper