मराठी
महाराष्ट्र राज्य शिक्षण मंडळएस.एस.सी (इंग्रजी माध्यम) इयत्ता १० वी

Write the molecular formula of calcium carbonate.

Advertisements
Advertisements

प्रश्न

Write the molecular formula of calcium carbonate.

एक शब्द/वाक्यांश उत्तर
Advertisements

उत्तर

\[\ce{CaCO3}\]

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
2023-2024 (March) Official

संबंधित प्रश्‍न

What does one mean by exothermic reaction? Give example.


Why are decomposition reactions called the opposite of combination reactions? Write equations for these reactions.


Write one equation for decomposition reactions where energy is supplied in the form of heat.


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


What type of reaction is represented by the digestion of food in our body?


State an important use of decomposition reactions.


What type of reaction is represented by the following equation?

\[\ce{CaCO3 -> CaO + CO2}\]


What type of reaction is represented by the following equation?

\[\ce{2FeSO4 -> Fe2O3 + SO2 + SO3}\]


What type of chemical reaction takes place when electricity is passed through water?


What type of chemical reaction is represented by the following equation?

\[\ce{X -> Y + Z}\]


Name the product formed on strongly heating ferrous sulphate crystals. What type of chemical reaction occurs in this change?


Which of the following can be decomposed by the action of light?


When a green iron salt is heated strongly, its colour finally changes to brown and odour of burning sulphur is given out.

  1. Name the iron salt.
  2. Name the type of reaction that takes place during the heating of iron salt.
  3. Write a chemical equation for the reaction involved.

What are thermal decomposition reactions ? Explain with an example.


What is a redox reaction? Explain with an example.


What does one mean by endothermic reaction? Give example.


Study the following figure and answer questions. 

a) After heating Calcium carbonate, which gas is formed in a test tube?
b) When we pass this gas through limewater what change, did you observe?
c) Write down the chemical reaction showing the product formation after heating the Calcium carbonate.

 


How can the rate of the chemical reaction, namely, decomposition of hydrogen peroxide be increased?


Rewrite the following statement by selecting the correct option:
________________ is a decomposition reaction.

Answer the following question.
2 g of silver chloride is taken in a china dish and the china dish is placed in sunlight for some time. What will be your observation in this case? Write the chemical reaction involved in the form of a balanced chemical equation. Identify the type of chemical reaction.


Classify the following reaction into different type:

\[\ce{2KClO3(s)->[\Delta] 2KCl(aq) + 3O2(g)}\]


Differentiate between direct combination reaction and a decomposition reaction.


Classify the following reaction into – 

  1. Direct combination 
  2. Decomposition
  3. Displacement
  4. Double decomposition

The reaction is – Zinc hydroxide on heating gives zinc oxide and water.


Give a balanced equation for –

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


The chemical reaction in which two or more products are formed from a single reactant is called ______ reaction.


What is electrolysis?


Explain the reaction given in the figure.


Which one of the following processes involves chemical reactions?


Which among the following statement(s) is (are) true?

Exposure of silver chloride to sunlight for a long duration turns grey due to

(i) the formation of silver by decomposition of silver chloride.

(ii) sublimation of silver chloride.

(iii) decomposition of chlorine gas from silver chloride.

(iv) oxidation of silver chloride.


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


Balance the following chemical equation and identify the type of chemical reaction.

`"HgO"("s") overset("(heat)")(->) "Hg"("l") + "O"_2("g")`


On heating blue coloured powder of copper (II) nitrate, in a boiling tube, copper oxide (black), oxygen gas and a brown gas X is formed

  1. Write a balanced chemical equation of the reaction.
  2. Identify the brown gas X evolved.
  3.  Identify the type of reaction.
  4. What could be the pH range of aqueous solution of the gas X?

These consist of two statements – Assertion (A) and Reason (R). Answer these questions selecting the appropriate option given below:

Assertion: Silver bromide decomposition is used in black and white photography.

Reason: Light provides energy for this exothermic reaction.


Write one equation for the decomposition reaction where energy is supplied in the form of light.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×