Advertisements
Advertisements
Question
Write the molecular formulae for the following compounds
Calcium (II) phosphate
Advertisements
Solution
Calciuih (II) phosphate – Ca3(PO4)2
APPEARS IN
RELATED QUESTIONS
What do the following abbreviations stand for ?
- O
- 2O
- O2
- 3O2
If the valency of carbon is 4 and that of sulphur is 2, work out the formula of the compound formed by the combination of carbon with sulphur. What is the name of this compound ?
Give the empirical formula of : Benzene C6H6
Identify the following substance:
Gas B that has an offensive smell as of rotten eggs.
Name the element in the compound and give the formula of the following compound:
Acetic acid
Write the formula of the following compound:
Zinc nitrate
Write the formula of the following compound:
Zinc sulphate
Write the formula of the following compound:
Lead [II] hydroxide
Write the chemical formula for the following elements.
- Hydrogen
- Nitrogen
- Ozone
- Sulphur
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 |

