Question

the chemical change with 20 equations happening in our everyday life​

Answer 1

$\huge{\bf{\green{\mathtt{AnSweR}}}}$

$\:\:\:\:\:\:$

________________________

$\large{\bf{\red{\mathtt{1)}}}}$ -

When zinc granules are added to dilute sulphuric acid , hydrogen gas is evolved , if a burning match stick is brought near the mouth of a test tube , it burns with A pop up sound .

$\:\:\:\:\:\:\:$

$\large{\bf{\mathtt{\boxed{(H2So4)+(Zn)→(ZnSo4)+(H2)}}}}$

$\:\:\:\:\:\:\:\:$

$\large{\bf{\red{\mathtt{2}}}}$ -

When solid lead nitrate is heated , reddish brown nitrogen dioxide gas is evolved . Also , a yellow colored lead monoxide is found.

$\:\:\:\:\:\:\:\:$

$\large{\bf{\mathtt{\boxed{2(Pb(No3)2)--> heated => 4(No2)+2(Pbo) + (02)}}}}$

$\:\:\:\:\:\:\:\:$

$\large{\bf{\red{\mathtt{3}}}}$ -

When hydrogen sulfide gas is passed through blue coloured copper sulphate Solution , black precipitate of copper sulphide is formed .

$\:\:\:\:\:\:\:\:$

$\large{\bf{\mathtt{\boxed{(CuSo4)+(H2s)=>(CuS)+(H2So4)}}}}$

$\:\:\:\:\:\:\:\:$

$\large{\bf{\red{\mathtt{4}}}}$ -

When carbon and Sulphur are heated , heat energy is absorbed , then carbon sulphide is formed .

$\:\:\:\:\:\:\:\:$

$\large{\bf{\mathtt{\boxed{(C)+2(S)=>endothermic\:reaction-Ca(OH)2}}}}$

$\:\:\:\:\:\:\:\:$

$\large{\bf{\red{\mathtt{5}}}}$ -

when baking soda is added to vineger , carbon dioxide gas is released with a hissing sound.

$\:\:\:\:\:\:\:\:\:$

$\large{\bf{\mathtt{\boxed{CH3CooH+NaHCo3=>CO2=>hissing\:sound}}}}$

$\:\:\:\:\:\:\:\:\:$

$\large{\bf{\red{\mathtt{6}}}}$ -

When cooked food containing oil and fats is kept in open for a long time , it gets spoiled and gives you a foul smell.

$\:\:\:\:\:\:\:\:$

$\large{\bf{\mathtt{\boxed{C6H12O6→2Co2+2c2H6o+2ATP}}}}$

_____________________