Question

name some compounds where the pressure of water molecules provide colour to those substance​

Answer 1

Answer:

Glass is a non-crystalline, often transparent amorphous solid, that has widespread practical, technological, and decorative use in, for example, window panes, tableware, and optics. Glass is most often formed by rapid cooling (quenching) of the molten form; some glasses such as volcanic glass are naturally occurring. The most familiar, and historically the oldest, types of manufactured glass are "silicate glasses" based on the chemical compound silica (silicon dioxide, or quartz), the primary constituent of sand. Soda-lime glass, containing around 70% silica, accounts for around 90% of manufactured glass. The term glass, in popular usage, is often used to refer only to this type of material, although silica-free glasses often have desirable properties for applications in modern communications technology. Some objects, such as drinking glasses and eyeglasses, are so commonly made of silicate-based glass that they are simply called by the name of the material.

Answer 2

Answer:

it is number of water molecules present in 1 formula unit of salt.

for example epsom salt .

chemical name of the substance is Sodium carbonate.

it is also known as washing soda.

washing soda contain 10 molecule of water of crystallization

formula of washing soda is:-

Na2co3.10 H20.

it is obtained by following process:-

Na2co3 + 10 H20 = Na2co3 . 10 H20 .

through the combination of sodium carbonate with 10 molecule of water we get washing soda that is sodium carbonate.

following are the two uses of sodium carbonate washing soda.

1) it is used in manufacture of glass.

2) it is also used in manufacture of detergent powder, it is also used for industrial chemical.

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