मराठी

Complete the missing component /variable given as x and y in the following reactions CusAgNOaqCuNOaqsCu(s)+2AgNO3(aq)→Cu(NO3)2(aq)+x(s) - Science

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प्रश्न

Complete the missing component /variable given as x and y in the following reactions

`"Cu"("s") + 2"AgNO"_3("aq") -> "Cu"("NO"_3)_2("aq") + x("s")`

एका वाक्यात उत्तर
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उत्तर

 x = 2Ag(s)

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पाठ 1: Chemical Reactions and Equations - Exemplar [पृष्ठ ५]

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एनसीईआरटी एक्झांप्लर Science [English] Class 10
पाठ 1 Chemical Reactions and Equations
Exemplar | Q 21. (b) | पृष्ठ ५

संबंधित प्रश्‍न

Differentiate between:

Reactants and products.


Balance the following equation:

H2 + O2 → H2O


Write balanced chemical equations for the following word equation:

Magnesium + dil sulphuric acid → Magnesium sulphate + water


Balance the following equation. Also name the products formed. 

`Mg + O_2         → MgO`


Name the type of chemical reaction shown by the following equation.

NaOH + HCI → NaCI + H2O


What is the chemical equation. How is it represented?


State what is a balanced equation with a relevant example. Give a reason why an equation is balanced with reference to the law of conservation of matter.


Balance the following equation:

\[\ce{C + H2SO4->CO2 + H2O + SO2}\]


Balance the following equation:

\[\ce{Al + O2->Al2O3}\]


Balance the following equation:

\[\ce{Fe2O3 + CO->Fe + CO2}\]


Balance the following equation:

\[\ce{KHCO3->K2CO3 + H2O + CO2}\]


Balance the following important equation:

FeCl3 + NaOH → NaCl + Fe(OH)3


Balance the following important equation:

Pb(NO3)2 + HCl → PbCl2 + HNO3 


Balance the following important equation:

S + HNO3 (conc.) → H2SO4 + H2O + NO2 


Which of the following are combination reactions?

  1. `2"KClO"_3 overset("Heat")(->) 2"KCl" + 3"O"_2`
  2. `"MgO" + "H"_2"O" -> "Mg"("OH")_2`
  3. `4"Al" + 3"O"_2 -> 2"Al"_2"O"_3`
  4. `"Zn" + "FeSO"_4 -> "ZnSO"_4 + "Fe"`

Complete the missing component /variable  given as x and y in the following reactions

`"Zn"("s") + "H"_2"SO"_4("aq") -> "ZnSO"_4(x) + "H"_2("y")`


Which among the following change is exothermic or endothermic in nature?

Dilution of sulphuric acid


Which among the following change is exothermic or endothermic in nature?

Dissolution of sodium hydroxide in water


Complete and balance the following equation:

\[\ce{NH4Cl + Ca(OH)2 ->}\]


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