Tag: evs

Compounds can exist in all three states(solid, liquid, gas) provided that they can be heated/cooled enough(to their respective boiling/melting points). Thus water, ice, and steam all are compounds of hydrogen and oxygen.

The levelling effect refers to the inability of a solvent to distinguish between the strengths of strong acids or bases. Water is a leveling solvent for strong acids; however, the question asks where it is minimum. In non-leveling or differentiating solvents, the effect is minimized.

Water is made of Hydrogen and Oxygen, which are gases at STP. 

Dissolved salts in potable water provide taste and are useful for living being like calcium and magnesium ions.

$22^{nd}$ of March every year is celebrated as the world water day.

Burning hydrogen with oxygen give rise to formation of water.

Henry Cavendish showed that water is made up of hydrogen and oxygen.

The number of molecules of water is 5. The formula is $CuSO _4. 5H _2O$.

The colour of hydrated copper sulphate is blue.

Anhydrous cobalt(II) chloride is blue. When it reacts with water, it forms the hexahydrate complex CoCl2.6H2O, which is pink.