Advertisements
Advertisements
प्रश्न
Name the following:
The compound formed when iron [Fe2+] combines with oxygen [O2−].
उत्तर
Iron (III) oxide
APPEARS IN
संबंधित प्रश्न
Write the molecular formula of sulphuric acid.
Write the molecular formulae of Iron (II) sulphide :
Write the molecular formulae of Nitric acide :
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 symbolic representation of a molecule ______
In hydrogen peroxide (H2O2), the proportion of hydrogen and oxygen by mass is :
Write the cations and anions present, if any, in the following :
- CH3COONa
- NaCl
- H2
- NH4NO3
If one mole of nitrogen molecules weighs 28 g, calculate the mass of one molecule of nitrogen in grams.
Diagrammatically represent the transfer of electrons.
‘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:
The formula of aluminium sulphate is _________.
State the correct formula of the following from the option given:
Calcium hydroxide
Molecule containing more than three atoms are known as ______.
How many atoms are present in a `PO_4^(3-)` ion?
What is the fraction of the mass of water due to neutrons?
Express each of the following in kilograms
5.84 × 10−3 mg
Express each of the following in kilograms
5.873×10−21g
Compute the number of ions present in 5.85 g of sodium chloride
A group of atoms carrying a fixed charge on them is called ————.