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# bubbles r produced during opening a soda bottle and when baking soda is added to vinegar.what is the difference between these two cases?

Asked by sacheta.s89 7th September 2015, 6:14 PM

Hi Sacheta,

A gas gushes out in the form of bubbles while opening a soda bottle. This gas is nothing but the carbon dioxide gas.

Baking soda and vinegar react with each other because of an acid-base reaction. Baking soda is a bicarbonate (NaHCO3) and vinegar is an acetic acid (HCH3COO). One of the products this reaction creates is carbon dioxide gas.

The first example is a physical change. Whereas, the second example is a chemical change. In both the cases carbon dioxide gas is liberated.

Answered by Expert 7th September 2015, 6:25 PM

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## The rain water from a roof 22 m × 20 m drains into a conical vessel having a base of diameter 2 m and height 3.5 cm. If the vessel is just full, find the rainfall in mm.

Asked by shailesh.solanki 18th March 2018, 7:37 PM

## The rain water from a roof 22 m × 20 m drains into a conical vessel having a base of diameter 2 m and height 3.5 cm. If the vessel is just full, find the rainfall in mm.

Asked by shailesh.solanki 18th March 2018, 7:35 PM

## A wooden toy was made by scooping out a hemisphere of same radius from each end of a solid cylinder. If the height of the cylinder is 10 cm, and its base is of radius 3.5 cm, find the volume of wood in the toy. Use pie=22/7

Asked by shailesh.solanki 18th March 2018, 7:34 PM