what is mean chemical reaction????
Answers
Answer: when an acid or chemical gives you allergies or disturbs your body reacts.
Explanation:when an acid or chemical gives you allergies or disturbs your body reacts.
Means where the substance change into different substance which makes a new chemical substances
Types of chemical reaction:
- Combination reaction
- Decomposition reaction
- Displacement reaction
- Double Displacement reaction
- Precipitation Reaction
Combination reaction
Where more reactants combines to form one single product .
Example of combination reaction: 2Na + Cl2 → 2NaCl
Decomposition reaction
Means where a single compound breaks to form more simpler compunds
Example of a decomposition reaction: CaCO3 → CaO + CO2
Displacement reaction
A chemical reaction in which a more reactive element displaces a less reactive element from its aqueous salt solution
Example of displacement reaction: Zn + CuSO4 → ZnSO4 + Cu
Double Displacement reaction
A chemical reaction in which ions gets exchanged between two reactants which form a new compound is called a double displacement reaction.
Example of double displacement reaction:
BBaCl2 + Na2SO4 → BaSO4 + 2NaCl
Precipitation Reaction
A chemical reaction that involves the formation of an insoluble product (precipitate; solid) is called Precipitation reactionb