Reactivity Series

Question 1

H+ in reactivity series represent

Answer 1

acid

Question 2

which 4 Reactivity Series metals react w/ water? + eqn

Answer 2

Potassium, Sodium, Calcium, Magnesium
metal + H2o -> metal hydroxide + H2

i.e. 2K(s) + 2H2o(l) -> 2KOH(aq) + H2(g)

https://docs.google.com/document/d/1Ep_FO9CxYSFbxmf3Zqg9mgm9NNyt2enpfMDr49gufrU/edit?tab=t.0 page 14

Question 3

which 4 reactivity series metals react w/ steam + eqn

Answer 3

Magnesium, Aluminium, Zinc, Iron
metal + steam -> metal oxide + H2

Potassium, Sodium, Calcium
can react, 2 dangerous

i.e. Zn(s) + H2o(g) -> ZnO(s) + H2(g)

https://docs.google.com/document/d/1Ep_FO9CxYSFbxmf3Zqg9mgm9NNyt2enpfMDr49gufrU/edit?tab=t.0 page 14

Question 4

define displacement in metals

Answer 4

more reactive metal
displaces less reactive metal
salt soln.

Question 5

displacement experiement setup

Answer 5

https://docs.google.com/document/d/1Ep_FO9CxYSFbxmf3Zqg9mgm9NNyt2enpfMDr49gufrU/edit?tab=t.0 page 13

Question 6

why aluminium removed from reactivity series?

Answer 6

has protective layer (AlO)
- will not show reactivity immediately

even tho it is high up enf in reactivity series such dat it will react w/ acid

it has protective layer

Question 7

why aluminium used, food wrapper?

Answer 7

has protective layer (AlO)
- will not rust

Question 8

how cause aluminium react?

Answer 8

1. scrape, sandpaper
2. Place into acid, long time

2. AlO -> amphotheric, will react w/ acid, long period time

https://docs.google.com/document/d/1Ep_FO9CxYSFbxmf3Zqg9mgm9NNyt2enpfMDr49gufrU/edit?tab=t.0 page 15

Question 9

Reactivity Series

Answer 9

Physics - Potassium
Sucks - Sodium
Chem - Calcium
Mark - Magnesium
Also (Aluminium removed)
Zero - Zinc

I - Iron
Think - Tin
Lit - Lead
Humanities - Hydrogen
Chinese - Copper
Sucks - Silver,

Geography - Gold
Too - Titanium

Question 10

G1 metals/K, Na, Ca displacement why dont use/why bubbling?

Answer 10

1. Soln G1 metal placed in, (aq)
2. Sodium react w/ water violently, high reactivity

Question 11

experiments, determine order, reactivity, metals

Answer 11

1. thermal decomposition
2. displacement

Question 12

thermal decomposition

which metal easier decompose?

Answer 12

Less reactive metal, easier metal carbonate decompose