Advertisements
Advertisements
Question
Write the formula of the following compound:
Calcium sulphate
Advertisements
Solution
Calcium sulphate - CaSO4 - `"SO"_4^(2-)`
APPEARS IN
RELATED QUESTIONS
The radius of an oxygen atom is 0.073 nm. What does the symbol ‘nm’ represent ?
State the chemical symbols for the following elements :
Sodium, Potassium, Iron, Copper, Mercury, Silver.
What do the symbols, H2, S and O4 mean in the formula H2SO4 ?
An element X has a valency of 4 whereas another element Y has a valency of 1. What will be the formula of the compound formed between X and Y ?
Write the formula of the following compound:
Sodium chloride
Write the formula of the following compound:
Sodium sulphite
Write the formula of the following compound:
Sodium bicarbonate
Write the formula of the following compound:
Calcium carbonate
Write the formula of the following compound:
Zinc sulphate
Write the formula of the following compound:
Aluminium hydroxide
Write the formula of the following compound:
Copper [I] oxide
Write the formula of the following compound:
Copper [II] nitrate
Write the formula of the following compound:
Tetra amine copper [II] sulphate
Write the formula of the following compound:
Iron [III] sulphate
Write the formula of the following compound:
Lead [II] chloride
Write the formula of the following compound:
Lead [II] hydroxide
Write the molecular formulae for the following compounds
Magnesium (II) acetate
Complete the following crossword puzzle (Fig. 3.1) by using the name of the chemical elements. Use the data given in Table.
| Across | Down | ||
| 2 | The element used by Rutherford during his α–scattering experiment | 1 | A white lustrous metal used for making ornaments and which tends to get tarnished black in the presence of moist air |
| 3 | An element which forms rust on exposure to moist air | 4 | Both brass and bronze are alloys of the element |
| 5 | A very reactive non–metal stored under water | 6 | The metal which exists in the liquid state at room temperature |
| 6 | Zinc metal when treated with dilute hydrochloric acid produces a gas of this element which when tested with burning splinter produces a pop sound. | 8 | An element with symbol Pb |
Write the steps that are followed to write down the chemical formula of a substance.
