transition metals, acid and bases,

Question 1

Why is this reaction a lot more stable

Answer 1

Because you going from x particles to y particles.
So an increase in entropy
To reverse these reaction you would cuse a decrease in entropy which is very hard to do.

Question 2

Name 2 bidentae ligands

Answer 2

Ethane 1- 2 diame (the one with Ch2)

Ethanedioate ( the one with oxygen)

Question 3

Bond angle in square planar

Answer 3

90

Question 4

Outline an experiment you could carry out to distinguish either copper,iron iron 2+,iron3+,alumnuim.

Answer 4

Put the solution into three separate test tubes.

Add sodium hydroxide solution dropwise using a dropping pipet.

Keep adding until excess and record any changes.

To the second test tube add ammonia solution using a dropping pipet- keep using until its in excess

excess.record changes.

Add sodium carbonate solution - record any changes.

Question 5

The observation you would record with sodium hydroxide.

Answer 5

All will form prepitates with sodium hydroxide.

Alumnuim hydroxide will dissolve in an excess sodium hydroxide(amphotertic)

Question 6

Reaction with ammonia

Answer 6

Copper hydroxide precipitate will dissolve in excess any ammnoinia.

Question 7

Reaction with sodium carbonate.

Answer 7

Alumnuim 3+ solution or fe 3+bubbles as C02 is formed.

Fe 2+ and Fe3+ behave identically in the other test but only Fe3+ gives off gas.