Advertisements
Advertisements
प्रश्न
What does the symbol '→' present in a chemical equation, mean?
Advertisements
उत्तर
'→' Arrow separates reactants from the products.
APPEARS IN
संबंधित प्रश्न
An atom of an element is denoted by a “symbol” Explain the meaning of the term ‘symbol’. State a reason for representing the following element by its symbol.
Helium by ‘He’
For writing a chemical formula – ‘symbols’ and combining capacity of an element with hydrogen i.e. ‘valency’ should be known. Explain the term – combining the capacity of an element i.e. valency.
Write the formula of the compound formed – given symbols and combining power or capacity (valency) of the following element in the compound.
K1+ Cl1-
State the type of element for the following:
Sulphur
Write the radical of the following valency:
Chlorine [Chloride]
Certain metal exhibit variable valencies which include valencies: 1+, 2+, 3+, and 4+.
State the variable valency of the following metal.
Lead
write symbol with the variable valency
State why the molecular formula of zinc carbonate is ZnCO3 .
The name copper was taken from ______.
How many elements are known at present?
Write a note on Greem symbols.
