Advertisements
Advertisements
Question
Write the chemical formula of the Magnesium chloride.
Advertisements
Solution
| Element Name | Magnesium |
| Element symbol | Mg |
| Charge | +2 |
| Valency | 1 Mg |
Hence formula: MgCl2
RELATED QUESTIONS
What do the symbols, H2, S and O4 mean in the formula H2SO4 ?
Write down the formulae for the following compounds :
Magnesium hydroxide
Name the element in the compound and give the formula of the following compound:
Acetic acid
Write the formula of the following compound:
Potassium bicarbonate
Write the formula of the following compound:
Lead [II] chloride
State of the following formula of a compound is incorrect. Incorrectly write the correct formula.
NaCO3
Write the chemical formula for the following compounds
- Aluminium sulphate
- Silver nitrate
- Magnesium oxide
- Barium chloride
Write the molecular formulae for the following compounds
Copper (II) bromide
Write the molecular formulae for the following compounds
Calcium (II) phosphate
Play a game for writing formula.
Example 2: A low-cost model for writing formulae: Take empty blister packs of medicines. Cut them in groups according to the valency of the element, as shown in the figure. Now, you can make formulae by fixing one type of ion into other.
For example:
The formula for sodium sulphate:
2 sodium ions can be fixed on one sulphate ion.
Hence, the formula will be Na2SO4.
Do it yourself:
Now, write the formula of sodium phosphate.
