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प्रश्न
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उत्तर
Potassium carbonate - K2CO3 - `"K"^1"CO"_3^(2-)`
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संबंधित प्रश्न
Write down the formulae of magnesium hydroxide.
Write the chemical formula of the Copper nitrate.
Explain the difference between 2N and N2.
Write down the formulae for the following compounds :
Magnesium hydroxide
An element Z has a valency of 3. What is the formula of oxide of Z ?
Give the formulae of the compounds formed from the following sets of elements :
- calcium and fluorine
- hydrogen and sulphur
- nitrogen and hydrogen
- carbon and chlorine
- sodium and oxygen
- carbon and oxygen
Which of the following represents a correct chemical formula ?
Correct the following statement:
Formula of iron (lll) oxide is FeO.
Give the empirical formula of Acetylene C2H2
Name the element in the compound and give the formula of the following compound:
Blue vitriol
Write the formula of the following compound:
Potassium iodide
Write the formula of the following compound:
Sodium carbonate
Write the formula of the following compound:
Sodium bisulphate
Write the formula of the following compound:
Magnesium sulphate
Write the formula of the following compound:
Iron [II] chloride
Write the formula of the following compound:
Lead [II] sulphate
Define the term Relative atomic mass. State why indirect methods are utilised to determine the absolute mass of an atom. Explain in brief the indirect method used.
Write the molecular formulae for the following compounds
Magnesium (II) acetate
Give the chemical formulae for the following compounds and compute the ratio by mass of the combining elements in each one of them. (You may use appendix-III).
- Ammonia
- Carbon monoxide
- (Hydrogen chloride
- Aluminium fluoride
- Magnesium sulphide
There are ______ hydrogen atoms in water molecule.
