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Balance the Given Equation: H2o2 H2o + O2 - Science

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प्रश्न

Balance the given equation:

H2O2  H2O + O2

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उत्तर

2H2O2 → 2H2O + O2

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पाठ 1: Chemical Reactions and Equations - Exercise 1 [पृष्ठ १९]

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लखमीर सिंह Chemistry (Science) [English] Class 10
पाठ 1 Chemical Reactions and Equations
Exercise 1 | Q 15.02 | पृष्ठ १९

व्हिडिओ ट्यूटोरियलVIEW ALL [4]

संबंधित प्रश्‍न

Balance the following chemical equation.

\[\ce{NaOH + H2SO4 -> Na2SO4 + H2O}\]


Balance the following chemical equation.

\[\ce{BaCl2 + H2SO4 -> BaSO4 + HCl}\]


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


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 elements.


Aluminium burns in chlorine to form aluminium chloride (AlCl3). Write a balanced chemical equation for this reaction.


A white precipitate will be formed if we add common salt solution to:
(a) Ba(NO3)2 solution
(b) KNO3 solution
(c) AgNO3 solution
(d) Mg(NO3)2 solution


Write your observation for the following chemical reaction and name the product formed:

When sugar is heated.


Write your observation for the following chemical reaction and name the product formed :

When manganese dioxide is added to potassium chlorate and heated.


Write symbolic representation for the following word equation and balance them :

Iron + Sulphur → Iron sulphide.


What is a chemical equation? Why it is necessary to balance it?


Balance the following equation:

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


Balance the following equation:

NO2 +H2O → HNO2 + HNO3


Write the balanced chemical equation of the following reaction.

aluminium + sodium hydroxide + water → sodium meta aluminate + hydrogen


In certain reaction a change of state is observed i.e. solid to liquid, liquid to gas etc. – State the change of state of the products – to give the respective reactant.

2H2 + O2 → 2H2O


Representation of the results of a chemical change – is a chemical equation.

For the equation: FeCl3 + 3NH4OH 3NH4Cl + Fe(OH)3 ↓

Answer the following:

Write the word equation for the above molecular equation.


Give word equation for the following chemical reaction and give the names of the product formed.

ZnCO3 → ZnO + CO2


Name the following:

Two non-metal which react explosively when brought in close contact.


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

\[\ce{2SO2 + O2 ⇌[V2O5][450°C] 2SO3}\]


Balance the given chemical reaction as per the instructions below.

\[\ce{NaOH + H2SO4 -> Na2SO4 + H2O}\]

Make a list of the elements in the chemical equation.


Which of the following is not a physical change?


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