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प्रश्न
State the term
The combining capacity of an element _______
उत्तर
The combining capacity of an element valency.
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संबंधित प्रश्न
How many atoms are present in a H2S molecule?
What does 2H2S represent ?
Write the molecular formulae of Hydrogen chloride :
Write the molecular formula of sulphuric acid.
Write the molecular formulae of Iron (II) sulphide :
Write the molecular formulae of Nitric acide :
Write the cations and anions present, if any, in the following :
- CH3COONa
- NaCl
- H2
- NH4NO3
Fill in the following blanks :
1 mole contains .............. atoms, molecules or ions of a substance.
If one mole of nitrogen molecules weighs 28 g, calculate the mass of one molecule of nitrogen in grams.
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 after the transfer of electrons in magnesium and sulphur atoms.
Fill in the blank:
The formula of aluminium sulphate is _________.
State the correct formula of the following from the option given:
Sodium bisulphite
State the correct formula of the following from the option given:
Ammonium sulphate
State the correct formula of the following from the option given:
Aluminium phosphate
Name the following:
A non-metal which forms a polyatomic molecule with more than three atoms.
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?
