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प्रश्न
Define: Compounds
उत्तर
Compounds : A compound is a pure substance formed by the chemical combination of two or more elements in a fixed ratio by mass.
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संबंधित प्रश्न
The formula of the sulphate of an element M is M2(SO4)3
Write the formula of it
Chloride
Fill in the blank:
Dalton used symbol _____ for oxygen and _____ for hydrogen.
Write the formula of the compound formed – given symbols and combining power or capacity (valency) of the following element in the compound.
K1+ Cl1-
Give the symbol of the following element:
Copper
Give the symbol of the following element:
Platinum
Give the symbol of the following element:
Aluminium
Write the chemical formula of the following:
calcium sulphide
Name three metals whose symbols are derived: from their Latin names.
Which of the following symbols of elements are incorrect? Give their correct symbols
- Cobalt CO
- Carbon c
- Aluminium AL
- Helium He
- Sodium So
What is the significance of the symbol of an element?
