Question

WarSyndrome sir please answer
Question :- what is chemical equation? Types of chemical equation? Explain all with 1 example ? (3mark question)
None will answer please otherwise will be reported only sir will answer please

Answer 1

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$\bold{a)\:Combination\:Reaction:-}$

It is a chemical change in which two or more substances react to form a new singular substance.

$\bold{Example:-}$

$H_{2} + O_{2}$ => $2H_{2}0$

$\bold{b)\:Decomposition\:Reaction:-}$

A complex molecule breaks down to make simpler ones. 

$\bold{Example:-}$

$H_{2}O$ => $2H_{2}$ + $O_{2}$

$\bold{c)\:Single\:displacement:-}$

This is when one element trades places with another element in a compound. 

$\bold{Example:-}$

$Mg + 2H_{2}O$ => $Mg(OH)_{2}$ + $H_{2}$

$\bold{d)\:Double\:displacement:-}$

This is when the anions and cations of two different molecules switch places, forming two entirely different compounds. 

$\bold{Example:-}$

$Pb(NO_{3})_{2}$ + $2KI$ => $PbI_{2} + 2KNO_{3}$

$\bold{e)\:Oxidation:-}$

When a substance gains oxygen or looses hydrogen.

$\bold{Example:-}$

$Cu + O_{2}$ => $2CuO$

$\bold{f)\:Reduction:-}$

When one substance loses oxygen or gains hydrogen​

$\bold{Example:-}$

$CuO + H_{2}$ => $Cu+ H_{2}O$

$\bold{g)\:Combustion\:Reaction:-}$

When two or more reactant combine together to form a different product.

$\bold{Example:-}$

$C_{10}H_{8}$ + $12O_{2}$ => $10CO_{2}$ + $4H_{2}O$

$\bold{h)\:Neutralization\:Reaction:-}$

When two acid and bases react to form a salt and water.

$\bold{Example:-}$

$HCl + NaOH$ => $NaCl + H_{2}O$

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Answer 2

Yes yes chemical equation padhaya tha, Ab yaad nhi aa rha, tab mai apne doston ke saath baat kr rhi thi, hahaha, meri koi galti hi nhi thi, teacher hi itna bore kr rhi thi, ki Padhne ka mann hi nhi kr rha tha. School life Mast se enjoy kr, Firse school life nhi milegi, mai Abhi 9 th me padhti hoon, next year boards hai, Bada tension hai