Question

Give the names and formulae of two substances in each case (a) hydrated substance (b) anhydrous substance (c) liquid drying agent (d) a basic drying agent​

Answer 1

Answer:

A hydrated substance is that which contains a definite proportion of water molecules (nH2O).

1-  CuSO4 · 5 H2O  “copper(II) sulfate pentahydrate.”  

2- CoCl2·6H2O "Cobalt(II) chloride hexahydrate"

The anhydrous substance does not contain water in it and exists in liquid, solid or gaseous form.

1- HCl " Gaseous Hydrochloric Acid"

2- CuSO4 "copper(II) sulfate"

A liquid drying agent removes water from a wet substance.

1- CaCl2 "Calcium chloride"

2- MgSO4 "Magnesium sulfate"

A basic drying agent is also used for removing water vapors.

1- CaO " Calcium oxide"

2- K2CO3 "Potassium carbonate"

Answer 2

Answer: A hydrated substance is that which contains a definite proportion of water molecules (nH2O). 1- CuSO4 · 5 H2O “copper(II) sulfate pentahydrate.” ... A basic drying agent is also used for removing water vapors.

Explanation