Advertisements
Advertisements
Question
Write the formula of the following compound:
Sodium sulphate
Advertisements
Solution
Sodium sulphate - Na2SO4 - `"Na"^(1+) "SO"_4^(2-)`
APPEARS IN
RELATED QUESTIONS
Write the chemical formula of the Calcium oxide.
Write the chemical formula of the Calcium carbonate.
An element Y has a valency of 4. Write the formula for its :
- chloride
- oxide
- sulphate
- carbonate
- nitrate
Give the empirical formula of Glucose C6H12O6 .
Identify the following substance:
An alkaline gas A which gives dense white fumes with hydrogen chloride.
What is a chemical formula? What is the significance of a formula?give an example to illustrate?
Name the element in the compound and give the formula of the following compound:
Blue vitriol
Write the formula of the following compound:
Potassium bicarbonate
Write the formula of the following compound:
Magnesium carbonate
Write the formula of the following compound:
Copper [II] nitrate
Write the formula of the following compound:
Iron [II] chloride
Write the formula of the following compound:
Iron [II] sulphate
State of the following formula of a compound is incorrect. Incorrectly write the correct formula.
(NH4)3SO4
Find the valency of the element which is underlined in the following formula.
- NaCl
- CO2
- Al (PO4)
- Ba (NO3)2
- CaCl2
Which of the following represents a correct chemical formula? Name it.
Which of the following represents a correct chemical formula? Name it.
BiPO4
Write the molecular formulae for the following compounds
Iron (III) sulphide
Write the molecular formulae for the following compounds
Mercury (II) chloride
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 |

