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weqwewe [10]
3 years ago
10

How do u get the formulae for sodium oxide​

Chemistry
2 answers:
Maslowich3 years ago
5 0

Answer:

The Chemical formula of sodium is Na.

The Chemical formula of oxide is O.

Explanation:

Therefore we know that the term 'valency' is called as the combining capacity of an atom of an element.

So by taking the valency of Sodium and  Oxide, we get  

Sodium with valency '1' and Oxide with valency '2'.

Na         O

1             2

When you cross over you get 'Na2O' as the formula for sodium oxide.

Hope this is helpful for you!

Don't forget to rate or give brainliest answer.!!

TY.

lesya [120]3 years ago
5 0

Answer:

The formula is gotten by exchange of valency between Na and O

Explanation:

To obtain the formula of a compound form by two elements, we must bear in mind their valency

Sodium(Na) has 1 valency

Oxygen(O) has 2 valency

For Na and O to form compound, they will exchange their valency i.e Na will give O is 1 valency and O will give Na it's 2 valency as shown below

Na + O —> Na2O

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