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The chemical formula for pure water is H2O. Pure water breaks up into an equal number of H+(aq) and OH-(aq) ions. As the amounts of the H+ and OH- ions are equal, water is said to be neutral.
However, solutions with more H+ ions than OH- ions (for example, HCl) are said to be acidic. Solutions with more OH- ions than H+ ions (for example, NaOH) are said to be alkaline (or basic).
DEGREE OF HARDNESS: The degree of hardness of water is conveniently expressed in terms of equivalent amount of CaCO 3 . Although hardness of water is never present in th
a nitrogen molecule travel at about 505 m/s at room temperature. find the velocity of a helium atom at the same temperature
ENTHALPY
Electrophilic Addition Reactions (A) Such types of reactions are generally provided by alkynes and alkenes. (B) Electrophilic addition reactions of alkynes and alkenes are m
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#question.how you can prepare 5 normal solution of potassium nitrate in 2 litre volume?
why we take carbon 12 as standard?
Q. Show Bond Lengths and p Π - d Π bonding? The bonds between S and 0 are much shorter than expected for a single bond in its oxides and therefore, may be considered as doubl
What are Cell diagrams? Consider the galvanic cell depicted in Figure. This cell has a hydrogen electrode at the left and a silver-silver chloride electrode at the right. The h
For a general reaction such as: The equilibrium constant is where the terms [A], [B],...strictly represent activities but are frequently approximated as co
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