हिंदी

Give Balanced Equation for the Following Conversion Affected by Heat Alone on the Substance: Copper Carbonate to Copper Oxide - Chemistry

Advertisements
Advertisements

प्रश्न

Give balanced equation for the following conversion affected by heat alone on the substance:

Copper carbonate to copper oxide

एक पंक्ति में उत्तर

उत्तर

Action of heat on:

\[\ce{\underset{\text{[light green]}}{CuCO3} ->[\triangle]  \underset{\text{[black]}}{CuO}  + CO2}\]

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 9: Practical Chemistry - Additional Questions

APPEARS IN

विराफ जे दलाल Simplified ICSE Chemistry [English] Class 9
अध्याय 9 Practical Chemistry
Additional Questions | Q 3.1

संबंधित प्रश्न

Changes in which new substances are formed are called ______ changes.


How do the following help in bringing about a chemical change?

pressure.


Complete and balance the following chemical equations:

`"H"_2"S"` + `"CI"_2`  `→`  


Write the missing reactants and products and balance the equations.

\[\ce{KClO3 ->[heat]}\] ___________+ ____________


MULTIPLE CHOICE QUESTIONS

Tick the most appropriate answer.

Reduction is a chemical reaction in which there is

  1. removal of hydrogen
  2. removal of oxygen
  3. addition of oxygen
  4. none of these

How is a strong electrolyte different from a weak electrolyte?


Distinguish by heating the following in dry test tubs.

Zinc carbonate, Copper carbonate and lead carbonate.


Select the correct answer for the following options:

The black residue obtained on heating copper carbonate.


A chemical reaction is often accompanied by external indications or characteristics which include – 

  1. Colour change
  2. Effervescence or gas evolved
  3. Evolution or absorption of heat
  4. Formation of a precipitate.

With reference to each of the above indications, state the external indication seen during – Addition of dilute hydrochloric acid to silver nitrate.


Complete the table given below.

Heat on iodine crystals Colour of vapours evolved  

Select the correct answer from the options given below:

State the gaseous product formed, when

An ammonium salt reacts with an alkali.


______ gas causes tears in our eyes while cutting onions.


_____ is the basic material to manufacture urea.


Chemical change is a temporary change.


Rusting of iron is  ______.


When magnesium is burnt in the air, a new substance is formed which is ______.


Photosynthesis is a chemical charge. Justify your answer.


When carbon dioxide is passed through lime water ______.


Write the effects of chemical reactions.


Collect information about the types of fuels used for cooking in your area. Discuss with your teachers/parents/others which fuels are less polluting and why.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×