Advertisements
Advertisements
प्रश्न
Write the molecular formulae of Iron (III) sulphide:
उत्तर
Iron (III) sulphide - `"Fe"_2 ("SO"_4)_3`
APPEARS IN
संबंधित प्रश्न
What does 2H2S represent ?
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 hydroxide ?
State the term
The symbolic representation of a molecule ______
In hydrogen peroxide (H2O2), the proportion of hydrogen and oxygen by mass is :
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)
Which contains more molecules, 10 g of sulphur dioxide (SO2) or 10 g of oxygen (O2) ?
(Atomic masses : S = 32 u ; O = 16 u)
How many units of charge are developed on each atom?
What is the number of electrons after the transfer of electrons in magnesium and sulphur atoms.
Diagrammatically represent the transfer of electrons.
‘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.
Explain the term ‘atomicity’.
State true of false. If false, give the correct statement.
Atoms cannot exist alone. They can only exist as groups called molecules.
What is the fraction of the mass of water due to neutrons?
Express each of the following in kilograms
5.873×10−21g
A group of atoms carrying a fixed charge on them is called ————.
______ can be formed by the same or different kinds of atoms.
A molecule containing three atoms is called a ______ molecule.
______ of an element consist of a fixed number of different types of atom.
