Question

Write the steps involved in writing the chemical formula of a substance by giving an example​

Answer 1

Answer:

see these

Explanation:

(i) write the symbol of the elements

(ii) if the valancies are identical or same then , cancel them

(iii) write the valancy of the elements

(iv) if the valancies are are different then use criss- cross and place them with reference to the symbol

Answer 2

Answer:

I don't understand the question