Q1
What is meant by a chemical reaction?
A Chemical Reaction is a process that occurs when two or more molecules collide with the right orientation and sufficient force to form a new product. In this process breaking and forming bonds between atoms takes place. Compounds that interact to produce new compounds are called reactants whereas the newly formed compounds are called products.
Q2
What is chemical reaction and equation?
A chemical reaction is in which the bonds are broken within reactant molecules, and new bonds are formed within product molecules in order to form a new substance. A chemical equation is nothing but a mathematical statement which symbolizes the product formation from reactants.
Q3
What are the chemical reaction types?
On the basis of the product formed, different types of reactions are Combustion reaction, Decomposition reaction, Neutralization reaction, Redox Reaction, Precipitation or Double-Displacement Reaction, Synthesis reaction.
Q4
What is a combustion chemical reaction?
A combustion reaction is a reaction in which a substance reacts with oxygen gas, releasing energy in the form of light and heat.
Q5
What is a chemical equation?
A chemical equation is a mathematical statement which symbolizes the product formation from reactants while stating certain conditions for which how the reaction has been conducted. Reactants are placed on the left side of the equation while products are placed on the right side of the equation connected by one-headed or two-headed arrows.
Example: A + B → C + D
Q6
What is a decomposition reaction?
A Decomposition reaction is a reaction in which chemical species break up into simpler parts.
Example: Calcium carbonate decomposes into calcium oxide and carbon dioxide on heating.
CaCO3 (s) + Heat → CaO (s) + CO2 (g)
Q7
What is a neutralization reaction?
A neutralization reaction is a reaction between an acid and a base to form salt and water.
Example: Hydrochloric acid reacts with sodium hydroxide to form sodium chloride and water.
HCl + NaOH → NaCl + H2O
Q8
What is a redox reaction?
Redox is a chemical reaction in which simultaneous oxidation and reduction take place. In a redox reaction electrons are transferred between two reactants.
Example: Zn + 2 H+ → Zn2+ + H2
Q9
What is precipitation or a double displacement reaction?
Precipitation or a double displacement reaction is a kind of displacement reaction in which two reactants exchange ions to form two new compounds.
Example: AB + CD → AD + CB
Q10
What is a synthesis reaction?
Synthesis is a chemical reaction in which multiple simple compounds combine under specific physical conditions to form a complex product.
Example: 2 Na + Cl2 → 2 NaCl.
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