मराठी

Write the Chemical Equation for the Following Word Equation and Balance Them.

Advertisements
Advertisements

प्रश्न

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

Calcium + Nitrogen → Calcium nitride

एक शब्द/वाक्यांश उत्तर
Advertisements

उत्तर

3Ca + N2→ Ca3N2

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 1: The Language of Chemistry - Exercise 1 (B) [पृष्ठ १५]

APPEARS IN

सेलिना Concise Chemistry [English] Class 9 ICSE
पाठ 1 The Language of Chemistry
Exercise 1 (B) | Q 4.3 | पृष्ठ १५

संबंधित प्रश्‍न

Chemical equations are balanced to satisfy the law of ______.


Give one example of a chemical reaction characterised by the formation of a precipitate.


Which of the following does not involve a chemical reaction?


The metal M reacts vigorously with water to form a solution S and a gas G. The solution S turns red litmus to blue whereas gas G, which is lighter than air, burns with a pop sound. Metal M has a low melting point and it is used as a coolant in nuclear reactors.

  1. What is metal M?
  2. What is solution S? Is it acidic or alkaline?
  3. What is gas G?
  4. Write a balanced chemical equation for the reaction which takes place when metal M reacts with water.
  5. Is this reaction exothermic or endothermic?

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

Calcium carbonate → Calcium oxide + Carbon dioxide.


Balance the following equation. Also name the product formed. 

`"NaNO"_3  → "NaNO"_2  + "O"_2`  Name of product (s)


Write down what you understood from the following chemical reaction.

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


Balance the following simple equation:

Al  +   H2O   →   Al2O3   +   H2 


A dilute ferrous sulphate solution is gradually added to the beaker containing acidified permanganate solution. The light purple colour of the solution fades and finally disappears. Which of the following is the correct explanation for the observation?


A student took a small amount of copper oxide in a conical flask and added dilute hydrochloric acid to it with constant stirring. He observed a change in colour of the solution. 

  1. Write the name of the compound formed and its colour.
  2. Write a balanced chemical equation for the reaction involved.

Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×