मराठी
सी.आई.एस.सी.ई.आयसीएसई ICSE Class 7

Write the Molecular Formulae of Iron (Ii) Sulphide :

Advertisements
Advertisements

प्रश्न

Write the molecular formulae of Iron (II) sulphide :

एका वाक्यात उत्तर
Advertisements

उत्तर

Iron (II) sulphide - `"FeS"`

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 4: Atoms, Molecules and Radicals - Exercise

APPEARS IN

सेलिना Concise Chemistry [English] Class 7 ICSE
पाठ 4 Atoms, Molecules and Radicals
Exercise | Q 9.06

संबंधित प्रश्‍न

How many atoms are present in a H2S molecule?


What does 5H2S04 represent ?


Write the molecular formulae of Magenesium oxide :


The valency of sodium is one, write the molecular formula for sodium oxide ?


The valency of sodium is one, write the molecular formula for sodium sulphate ?


The valency of sodium is one, write the molecular formula for sodium carbonate ?


The valency of sodium is one, write the molecular formula for sodium nitratev ?


Write the cations and anions present, if any, in the following : 

  1. CH3COONa 
  2. NaCl
  3. H2
  4. NH4NO3

Calculate the number of molecules present in a drop of chloroform (CHCl3) weighing 0.0239 g.

(Atomic masses : C = 12 u ; H = 1 u ; Cl = 35.5 u)


If 1 gram of sulphur dioxide contains x molecules, how many molecules will be present in 1 gram of oxygen ?

(S = 32 u ; O = 16 u)


What is the number of electrons donated by a magnesium atom and number of electrons accepted by a sulphur atom during their chemical combination?


Write the molecular formulae of Magnesium nitride:


‘Atoms of the same element or different from Dalton’s atomic theory by the Modern Atomic Theory.
Give two examples each of –

  • Atoms of the same element
  • Atoms of different elements combining to form a molecule.

Name the following:

A molecule of a compound containing two oxygen atoms and one nitrogen atom.


Calculate the number of water molecules present in one drop of water which weighs 0.18 g.


How many atoms are present in a PO4 3– ion?


How many atoms are present in a `PO_4^(3-)` ion?


Express each of the following in kilograms

5.84 × 10−3 mg


Express each of the following in kilograms

5.873×10−21g


______ can be formed by the same or different kinds of atoms.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×