Question

Q. 1Why do we see millions of compounds all around us?
Q. 2The smallest particle of gold and iron are gold atom and iron atom respectively. However, the smallest particle of water is not a water atom. Why?
Q. 3The properties of a compound are different from those of its constituent elements. Explain giving one example.

Answer 1

Answer:

Explanation:

1. There are only just over 100 types of atoms, but there are millions and millions of different types of substances out there. This is because they are all made up of different types of molecules. Molecules are not only made up of different types of atoms but also different ratios.

2.  Because water ($H_{2}O$ ) exist as a molecule consisting of hydrogen and oxygen .

    while gold or iron only consist of pure metals  (  i.e. only one element)        respectively

3. The properties of compounds are often very different from the properties of the elements that make them.

For example, water is made from two atoms of hydrogen bonded to one atom of oxygen. ... Sugar is a compound composed of atoms of carbon, hydrogen, and oxygen.