why the pH scale range is 0-14?
How is measurement of ph made?
Why do we hear thunder after seeing a flash of lightning ?
Why do clothes dry quicker in wind than in still air ?
Why does a match-stick burn, when struck against the match-box surface
Explain the classification of oxides ?
Write the chemical formula for epsom salts?
Define what is avogadro’s law?
Which is the hardest substances know ?
Why is the color of the indicator drop remains the same at the end point?
How are pka and strength of a weak acid related?
Explain the difference between the Metals and Metallurgy ?
What happens when the excess of stannous chloride is not removed