मराठी

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. - Science

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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.

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उत्तर

False
Formula of a reactant or product cannot be altered, but chemical equation is balanced by multiplying the reactant or product with numbers like 2,3,4,5 and so on to balance the number of atoms in the chemical equation.

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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 5 | पृष्ठ १८

व्हिडिओ ट्यूटोरियलVIEW ALL [4]

संबंधित प्रश्‍न

Translate the following statement into chemical equation and then balance it.

Hydrogen sulphide gas burns in the air to give water and sulphur dioxide.


Write the balanced chemical equation for the following reaction.

\[\ce{Barium chloride + Potassium sulphate → Barium sulphate + Potassium chloride}\]


How will you indicate Exothermic reaction in a chemical equation?


Write complete balanced equation for the following reaction:

Calcium (solid) + water (liquid)  Calcium Hydroxide (solution) + Hydrogen (gas)


Balance the given equation:

BaCI2 + H2SO4  BaSO4 + HCI


What do you understand by exothermic reactions?


Is Electrolysis of water an endothermic reaction or an exothermic reaction?


Balance the following equation. Also name the product formed. 

FeCI2 + CI2 →  FeCI3


Write down what you understood from the following chemical reaction.

AgNO3(aq) + NaCI(aq) → AgCI ↓ + NaNO3(aq)


Write the chemical equation for the following word equation and balance them.

Calcium + Nitrogen → Calcium nitride


Balance the following equation:

Ca + N2 → Ca3N2


Write the balanced chemical equation of the following reaction. sodium hydroxide + sulphuric acid → sodium sulphate + water


Write the balanced chemical equations of the following reactions.

chlorine + sulphur dioxide + water →  sulphuric acid + hydrogen chloride


Give one example in the case where supplying energy [given below] is necessary for a chemical reaction.

Catalyst


Name the following:

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Balance the following simple equation:

ZnS   +   O2  →  ZnO + SO2 


Balance the following simple equation:

Fe2O3  +  H2  → Fe  +  H2O


Underline the compound in the equation given below, it is incorrectly balanced and write the correct balancing for the same.

Na2SO3 + HCl → 2NaCl + H2O + SO2


What is a reactant in a chemical equation?


When aqueous solutions of potassium iodide and lead nitrate are mixed an insoluble substance separates out. The chemical equation for the reaction involved is: 


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