Advertisements
Advertisements
Question
Write the formula of the compound formed – given symbols and combining power or capacity (valency) of the following element in the compound.
Ca2+ NO31-
Solution
Ca2+ NO31-
Steps
Formula = Ca(NO3)2
RELATED QUESTIONS
Give the symbols and valencies of following radicals:
(a) Hydroxide (b) Chloride
(c) Carbonate (d) ammonium
(e) Nitrate
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’
State the most reactive and the least reactive metal from the following – Zn, Ag, Na, Fe, Cu, Pb.
Give the symbol of the following element:
Phosphate
Give the formula of the following gas:
Nitrogen
State the valency of the following metallic element and write symbol with the valency
Sodium
State the valency of the following metallic element and write symbol with the valency
Chromium
Certain metal exhibit variable valencies which include valencies: 1+, 2+, 3+, and 4+.
State the variable valency of the following metal.
Silver
write symbol with the variable valency
State why the molecular formula of zinc carbonate is ZnCO3 .
What does the symbol '(g)' present in a chemical equation, mean?
