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| Question | Answer |
| What is bond fission? | Breaking a covalent bond |
| What are the two types of bond fission? | Heterolytic fission Homolytic fission |
| What happens during heterolytic fission? | The bond breaks unevenly with one of the bonded atoms receiving both electrons from the bonded pair |
| What are the products of heterolytic fission? | A positively charged cation (X⁺) A negatively charged anion (Y⁻) |
| Give the general equation for heterolytic fission | XY --> X⁺ + Y⁻ |
| What happens during homolytic fission? | The bond breaks evenly and each bonding atom receives an electron from the bonded pair |
| What are the products of homolytic fission? | Two electrically uncharged radicals |
| What is a radical? | Particles that have an unpaired electron |
| Give the general formula for homolytic fission | XY --> X• + Y• |
| What is a mechanism? | A sequence of steps showing the path taken by electrons in a reaction |
| Complete the sentences: Reactions occur via a series of different _____________. These processes can be shown step by step using a reaction ______________. Reaction mechanisms use _______ _________ (↷) to show the movement of a _______ ___ __________. | Reactions occur via a series of different PROCESSES. These processes can be shown step by step using a reaction MECHANISM. Reaction mechanisms use CURLY ARROWS (↷) to show the movement of a PAIR OF ELECTRONS. |
| Using curly arrows, show how heterolytic fission occurs in a compound XY |
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