Advertisements
Advertisements
Question
Fill in the blank:
A molecule of an element is _________.
Solution
A molecule of an element is chorine.
APPEARS IN
RELATED QUESTIONS
What does 2H2S represent ?
Write the molecular formula of sulphuric acid.
Write the molecular formulae of Iron (II) sulphide :
The valency of sodium is one, write the molecular formula for sodium sulphate ?
In hydrogen peroxide (H2O2), the proportion of hydrogen and oxygen by mass is :
Fill in the following blanks :
1 mole contains .............. atoms, molecules or ions of a substance.
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?
‘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’.
‘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:
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 molecule of a compound containing two oxygen atoms and one nitrogen atom.
Molecule containing more than three atoms are known as ______.
Express each of the following in kilograms
5.84 × 10−3 mg
Express each of the following in kilograms
58.34 g
