Advertisements
Advertisements
Question
Write the formula of the following compound:
Aluminium oxide
Solution
Aluminium oxide - Al2O3 - `"Al"^(3+)["O"]^(2-)`
APPEARS IN
RELATED QUESTIONS
Write the chemical formula of the Calcium carbonate.
What do the following abbreviations stand for ?
- O
- 2O
- O2
- 3O2
The atomicities of ozone, sulphur, phosphorus and argon are respectively :
An element Z has a valency of 3. What is the formula of oxide of Z ?
Name the elements water is made of. What are the valencies of these elements ? Work out the chemical
formula for water.
If the valency of hydrogen is 1 and that of nitrogen is 3, work out the formula for ammonia.
Name the element in the compound and give the formula of the following compound:
Ethanol
Write the formula of the following compound:
Potassium plumbite
Write the formula of the following compound:
Sodium carbonate
Write the formula of the following compound:
Calcium carbonate
Write the formula of the following compound:
Calcium bicarbonate
Write the formula of the following compound:
Magnesium nitrate
Write the formula of the following compound:
Magnesium bicarbonate
Write the formula of the following compound:
Zinc sulphate
Write the formula of the following compound:
Iron [III] chloride
Write the formula of the following compound:
Iron [III] sulphate
Write the formula of the following compound:
Iron [III] sulphide
Define the term Relative molecular mass. State why indirect methods are utilised to determine the absolute mass of an atom. Explain in brief the indirect method used.
State of the following formula of a compound is incorrect. Incorrectly write the correct formula.
NaO
State of the following formula of a compound is incorrect. Incorrectly write the correct formula.
BaCl2
