Advertisements
Advertisements
Question
State whether the following ion or radical given below of a non-metallic element exhibits valency: 1–, 2– or 3–. (write the ion or radical with the correct valency).
Sulphate
Advertisements
Solution
| Name | Symbol | Ion | Valency |
| Sulphate | \[\ce{SO4}\] | \[\ce{[SO4]^{2-}}\] | −2 |
APPEARS IN
RELATED QUESTIONS
The formula of the sulphate of an element M is M2(SO4)3
Write the formula of it
Chloride
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.
Copper by ‘Cu’
In the chemical word equation – Zinc + Sulphuric acid → Zinc sulphate + Hydrogen
The molecular equation is :
Zn + H2SO4 → ZnSO4 + H2[g].
State what [g] represents.
Give the symbol of the following element:
Oxygen
Give the formula of the following gas:
Ammonia
Certain metal exhibit variable valencies which include valencies: 1+, 2+, 3+, and 4+.
State the variable valency of the following metal.
Iron
write symbol with the variable valency
Define the term ‘symbol’.
What does the symbol '(aq.)' present in a chemical equation, mean?
Write the constituent elements and their symbols for the following compounds.
- Carbon monoxide
- Washing soda
In the same way in chemistry, each element is denoted by a ______.
