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प्रश्न
State the term
The symbolic representation of a molecule ______
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उत्तर
The symbolic representation of a molecule molecular formula.
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संबंधित प्रश्न
What does 2C02 represent ?
What does 2H2S represent ?
What does 6NaNO3 represent ?
The valency of sodium is one, write the molecular formula for sodium oxide ?
Fill in the blank
_______ is a triatomic molecule.
State the term
A group of atoms that react as a single unit ______.
State the term
The combining capacity of an element _______
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)
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?
State the correct formula of the following from the option given:
Copper [II] nitrate
Name the following:
A molecule of a compound containing two oxygen atoms and one nitrogen atom.
How many atoms are present in a PO4 3– ion?
Express each of the following in kilograms
5.84 × 10−3 mg
Express each of the following in kilograms
58.34 g
