Chemistry
The sulphate radical is written as SO42-. What is the formula of calcium sulphate?
- Ca(SO4)2
- Ca2(SO4)
- Ca(SO4)3
- CaSO4
Related Questions
The valency of iron in Fe2O3 is:
- 1
- 2
- 3
- 6
Which of the following has valency 4?
- Aluminium
- Oxygen
- Carbon
- Phosphorus
Which of the following exhibits variable valency?
- Calcium
- Copper
- Carbon
- Chlorine
State the term for the following:
(a) The number of atoms present in a molecule of an element.
(b) The symbolic representation of a molecule.
(c) A group of atoms that react as a single unit.
(d) The combining capacity of an element.
(e) The tabular arrangement of elements in horizontal rows and vertical columns.