Question

Q4 Study the reaction given:
Hydrated
Exposure
Anhydrous
Na,co,
to air
Na,co,
Which process is indicated by the above reaction? Define it.
А
B
What is meant by hydrated crystals?
What is the common name of: (i) anhydrous Na,C0g
с
(ii) hydrated Na,cog

Answer 1

Answer:

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ANSWER

Electronic configuration of Chromium, with atomic number 24=1s

2

2s

2

2p

6

3s

2

3p

6

4s

1

3d

5

.

Electronic configuration of Copper, with atomic number 29=1s

2

2s

2

2p

6

3s

2

3p

6

4s

1

3d

10

.