Advertisements
Advertisements
Question
What does 2H2S represent ?
Advertisements
Solution
2H2S = 2 molecules of hydrogen sulphide.
APPEARS IN
RELATED QUESTIONS
What does 6NaNO3 represent ?
Write the molecular formulae of Sodiun sulphide:
Write the molecular formulae of Calcium hydroxide :
Write the molecular formulae of Hydrogen chloride :
Write the molecular formulae of Nitric acide :
Write the molecular formulae of Aluminium sulphate :
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 carbonate ?
State the term
The combining capacity of an element _______
Fill in the following blanks :
1 mole contains .............. atoms, molecules or ions of a substance.
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)
Diagrammatically represent the transfer of electrons.
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.
Fill in the blank:
A molecule of an element is _________.
Name the following:
A molecule of a compound containing two oxygen atoms and one nitrogen atom.
Name the following:
A non-metal which forms a polyatomic molecule with more than three atoms.
How many atoms are present in a PO4 3– ion?
How many atoms are present in a `PO_4^(3-)` ion?
