5193502
Descripción
Fichas por Anisha Rai, actualizado hace más de 1 año
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Creado por Anisha Rai
hace alrededor de 8 años
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| Pregunta | Respuesta |
| What are the three states of matter? | Solid Liquid Gas |
| Name the interconversion processes from liquid to gas | Evaporation |
| Name the interconversion processes from gas to liquid | Condensation |
| Name the interconversion processes from solid to liquid | Melting |
| Name the interconversion processes from liquid to solid | Freezing |
| Name the interconversion processes from solid to gas / gas to solid | Sublimation |
| Describe the particle arrangements in a solid | Strong forces of attraction between particles which holds them in fixed positions Definite shape and volume Vibrate |
| Describe the particle arrangements in a liquid | Some force of attraction Free to move No definite shape Constantly moving with random motion |
| Describe the particle arrangement in a gas | No force of attraction Free to move Only interact when they collide No definite shape or volume |
| Where does the evidence for the existence of particles come from? | Simple experiments |
| Explain the diffusion experiment of Br2 with air | Test tube full of bromine with lid on. Remove lid and place a test tube full of air on top. Over time, bromine vapour diffuses and mixes thoroughly with the air |
| Explain the diffusion experiment of NH3 with HCl | The particles diffuse accross the test tube. When they meet they form ammonia chloride. Meet nearer HCl - shows that is diffuses slower |
| Explain the diffusion experiment of KMnO4 with water | The things are heated Purple floats to top, then falls back down because particles get more energy and less dense |
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