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प्रश्न
What is the number of electrons after the transfer of electrons in magnesium and sulphur atoms.
उत्तर
Eight
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संबंधित प्रश्न
What does 2C02 represent ?
What does 5H2S04 represent ?
Write the molecular formulae of Hydrogen chloride :
Write the molecular formulae of Aluminium sulphate :
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 nitratev ?
State the term
A group of atoms that react as a single unit ______.
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.
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(Atomic masses : S = 32 u ; O = 16 u)
‘Dilute hydrochloric acid is added to sodium hydroxide’. Give a word equation and a molecular equation of the same. Is the equation written, a balanced equation. Give reasons.
State the correct formula of the following from the option given:
Calcium hydroxide
State the correct formula of the following from the option given:
Aluminium phosphate
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
0.584 g
Express each of the following in kilograms
58.34 g
