Explanation:
Atoms:
These are the smallest indivisible particles that takes part in chemical reactions. Chemical reactions simply involves the combination of atoms.
Each form of matter is made up of small particles called atoms. Atoms are distinct and are different from one another. There are different known atoms called elements and they are arranged on the periodic table.
An atom is made of three particles:
- Protons
- Neutrons
- Electrons
Example is sodium atom, hydrogen atom, e.t.c
Chemical formula:
It is simply a combination of symbols used to depict group of atoms that have come together to form compounds, molecules and sometime mixtures.
Formula's are alpha-numeric in nature. The number shows the number of atoms in the formula.
For example H₂O is the formula of water
Chemical reaction:
It is a process that involves the re-arrangement of atoms through the exchange of electrons between different species.
A chemical reaction is made up of:
- Reactants on the left hand side.
- Products on the right hand side.
2H₂ + O₂ → 2H₂O
Learn more:
Chemical reaction brainly.com/question/3953793
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