Question
Explain how does SONAR work?
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| Atoms | Atomic number | Electron distribution |
| a) O | 8 | – |
| b) N | – | – |
| c) – | 17 | – |
| d) – | – | 2,8,2 |
| Name of compound | Type of compound |
| a) Sodium chloride | ? |
| b) ? | co-ordinate covalent compound |
| c) Methane | ? |
| d) Fluorine molecule | ? |
What could be the final temperature of a mixture of 100 g of water at 90 °C and 600g of water at 20°C.