Question

Bill needs to balance an equation that involves aluminium oxide (formula Al2O3). He needs a total of 12 oxygen atoms to balance his equation. What should he write? 12 Al2O3, 4 Al2O3 or Al6O12? b)Sulphuric acid, also called ‘king of chemicals’ has the formula H2SO4. Its appearance is different from that of hydrogen and sulphur. Give two other reasons why sulphuric acid is a compound and not a mixture. GIVE ONLY IF U KNOW OR ELSE I WILL REPORT U

Answer 1

Answer:

1) Formula of Aluminium Oxide:

Al₂O₃

If you need 12 atoms of oxygen, then write:

4Al₂O₃

2) Sulphuric acid is a compound, not mixture because:-

(a) Its appearance is different from hydrogen and sulphur.

(b) Two or more elements are chemically combined to form sulphuric acid.

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