chemistry of carbonates and bicarbonates

You might have seen the effervescence when lime juice is dropped on
the floor, leaving a white mark. Or you might have observed the
use of baking soda as a leavening agent to rise cookies, cakes etc.,.
You may wonder about the fizz when club soda or coke bottles are
opened. It is a known fact that our favorite bakery items are rendered
tasty by adding baking powder.  The use of washing soda in laundries,
in softening hard water; and the use of lime stone and lime water in
making construction materials like Portland cement, lime mortar etc.,
– all of these involve  carbonates or bicarbonates.

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