Question

Name substances in each case
I)Contain only molecules
II) Contains only ions
III) Contains ions as well as molecules

Answer 1

1. Methane (CH4) and Carbon dioxide (CO2)
2.Sodium chloride (NaCl),Potassium chloride (KCl)
3. Na2CO3.10 H2O( ions are Na+ and CO32- and molecule is H2O), CuSO4.5H2O (( ions are Cu2+ and SO42- and molecule is H2O)​

Answer 2

Answer:

I.Glucose and fructose

II.NaCl and NaOH

III.$CH_{3} COOH$ and $NH_{4}OH$

Explanation:

An atom or molecule that has received or lost one or more of its valence electrons, resulting in a net positive or negative electrical charge, is referred to as an ion.

The smallest component of a chemical element or compound, a molecule possesses the chemical characteristics of that element or compound. Atoms are held together by chemical bonds to form molecules. These bonds develop as a result of atoms sharing or trading electrons. Some elements' atoms easily form molecules by joining forces with other atoms. These elements include chlorine and oxygen, for instance. Certain elements' atoms are difficult to bind with other atoms. Neo and argon are two examples.

A compound in chemistry is a substance that is created by mixing two or more different chemical elements in such a way that the atoms of the various elements are kept together by strong chemical bonds. The sharing or trading of electrons between the atoms results in the formation of these bonds. A molecule is a compound's tiniest, unbreakable unit.

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