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What Does the Symbol (Aq) Represent in a Chemical Equation? - Science

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प्रश्न

What does the symbol (aq) represent in a chemical equation?

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उत्तर

The symbol (aq) stands for aqueous solution. When it is written after a formula in a chemical equation, it represents that the element or compound is a solution made in water.

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पाठ 1: Chemical Reactions and Equations - Exercise 1 [पृष्ठ १८]

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लखमीर सिंह Chemistry (Science) [English] Class 10
पाठ 1 Chemical Reactions and Equations
Exercise 1 | Q 7 | पृष्ठ १८

व्हिडिओ ट्यूटोरियलVIEW ALL [4]

संबंधित प्रश्‍न

State whether the following statement is true or false:
A chemical equation can be balanced easily by altering the formula of a reactant or product.


When hydrogen is passed over copper oxide, copper and steam are formed. Write a balanced equation for this reaction and state which of the chemicals are reactants.


 Rewrite the following information in the form of a balanced chemical equation:
Magnesium burns in carbon dioxide to form magnesium oxide and carbon.


Which of the following does not involve a chemical reaction?


Balance the following equation :

Pb3O4 → PbO + O2


Balance the following equation. Also name the product formed. 

` "H"_2"O"_2    →  "H" _2 "O" + "O"_2` 


Balance the following equation. Also name the product formed.

N2 + H2   →  NH


Balance the following equation:

\[\ce{S + HNO3 -> H2SO4 + NO2 + H2O}\]


Balance the following equation:

 HNO3 + H2S → NO2 + H2O + S


Name the fundamental law that is involved in every equation.


What is the valency of :

carbon in CH4


Considering the relationship in the first pair, complete the second paie :

AgCI : White :: CuI2 : ___________


Write word equation for the following molecular equation:

\[\ce{NH3 [g] + HCl [g] ⇌ NH4Cl [s]}\]

Word equation:
State which characteristic is observed in the above reaction.

Give an-example of a similar above characteristic, seen between two other gaseous reactants.


Write word equation for the following molecular equation:

\[\ce{CuSO4 + 2NaOH -> Na2SO4 + Cu(OH)2↓}\]

Word equation:

State the colour of the products.


Name the following:

The silvery residue obtained on heating mercury [II] oxide.


Name the following:

The gas evolved when a dilute acid is added to chalk [limestone].


Write word equation for the following chemical reaction given below. Also state the observation seen in the case.

Pb(NO3)2 + 2NH4OH → 2NH4N03 + Pb(OH)2↓


Balance the following simple equation:

H2  +   O2  →   H2O


Write a balanced equation for the following word equation:

Nitrogen dioxide + Water + Oxygen → Nitric acid


Which of the following is the correct observation of the reaction shown in the above set up?


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