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सी.आई.एस.सी.ई.आयसीएसई ICSE Class 8

Give a Balanced Equation for – a Thermal Decomposition Reaction Involving Heat on Limestone Calcium Carbonate - Chemistry

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प्रश्न

Give a balanced equation for –

A thermal decomposition reaction involving heat on limestone [calcium carbonate]

एका वाक्यात उत्तर
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उत्तर

Thermal decomposition of limestone:
\[\ce{\underset{\text{Limestone}}{CaCO3}->[\Delta]CaO + CO2}\]

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पाठ 6: Chemical Reactions - Exercises

संबंधित प्रश्‍न

Taking into consideration the relationship in the first pair, complete the second pair

2H2 + O2 → 2H2O :Combination Reaction :: 2HgO → 2Hg + O2:_________


Rewrite the following statements by selecting the correct options:
\[\ce{CaCO3 ->[\Delta] CaO + CO2 ^}\] is a __________ reaction.


What is the colour of ferrous sulphate crystals? How does this colour change after heating?


When a green iron salt is heated strongly, its colour finally changes to brown and odour of burning sulphur is given out.
(a) Name the iron salt.
(b) Name the type of reaction that takes place during the heating of iron salt.
(c) Write a chemical equation for the reaction involved.


(a) Design an activity to demonstrate the decomposition reaction of lead nitrate.

(b) Draw labelled diagram of the experimental set-up. List two main observations.

(c) Write balanced chemical equation for the reaction stating the physical state of the reactant and the products.


Give a balanced equation for –

A white precipitate obtained during a double decomposition reaction involving a silver salt with sodium salt.


Give a balanced equation for the following type of reaction:

A thermal decomposition reaction in which a compound decomposes to give two new compounds.


When SO2 gas is passed through a saturated solution of H2S, which of the following reaction occurs?


Complete the following reaction:

\[\ce{C_12H_22O11->[Heat]}\] ______ + ______.


A metal nitrate 'A' on heating gives a metal oxide along with evolution of a brown coloured gas 'B' and a colourless gas, which helps in burning. Aqueous solution of 'A' when reacted with potassium iodide forms a yellow precipitate.

  1. Identify 'A' and 'B'
  2. Name the types of the reactions involved in the above statement.

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