Question

Something To Know
1.
A. Fill in the blanks.
Materials made up of same kind of particles are called elemento
The type and number of particles of each kind present in a substance is given
by its
2.
3.
The chemical formula of water is
4.
Iron gets rusted on coming in contact with
and
5.
The process that leads to a chemical change is called a
6.
In a neutralisation reaction,
and
are formed
B. Write True or False for the following statements.
1.
All matter is made up of atoms.
2.
Compounds are substances consisting of two or more
elements chemically combined in a fixed ratio.​

Answer 1

1. atom
2. H2O
3. water and air
4. chemical reaction
5. salt
6. true
7. true

hope it helps you

Answer 2

Answer:

Materials made up of same kind of particles are called as elements.

The type and number of particles of each kind present in a substance are given by its atoms. Explanation: Atoms are known to be the smallest building blocks of matter

H2O

The iron reacts with water and oxygen to form hydrated iron(III) oxide, which we see as rust. Iron and steel rust when they come into contact with water and oxygen – both are needed for rusting to occur.

Chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. These processes are called chemical reactions and, in general, are not reversible except by further chemical reactions.