Flashcards
States of Matter
Flashcards do conjunto (11)
- 1What are the three forms of state?Solid, Liquid and Gas.
- 2What affects the state something is in? (What determines if it is a solid, liquid or gas?)The state that something is in in at a certain temperature is dependant on how strong the forces of attraction are between the particles of the materials.
- 3Name of the model used to describe how particles behave:Particle Model.
You can use the PM to explain how the particles in a material behave in each state of matter by considering each particle as a small, solid, inelastic sphere. - 4Properties of solids:Solids have strong forces of attraction between particles which gives them their closeness and fixed positions to form a lattice arrangement. The particles DO NOT move so have a definite shape and volume. However particles can vibrate.
- 5Properties of Liquids:Weaker forces of attraction (than solids) and are randomly arranged therefore free to move past each other, but particles are close together. They have a definite volume but not shape. They flow to take the shape of the container. Particles are constantly moving with random motion. The hotter it gets the more the particles move and slight expansion.
- 6Properties of Gases:Gas particles are separate and there is no attraction between them. The particles in gases travel in straight lines. Gases do not keep a fixed shape or volume and will fit nay container. The particles move constantly with random motion. The hotter the gas gets, the faster they move. Gases either expand or increase in pressure when heated.
- 7What is particle theory?Particle Theory is a model used to explain the three states of matter. However it has many limitations.
- 8Limitations to using the particle model?- It shows all particles in a substance as the same size. (Variation in size)
- Particles aren't solid or inelastic and they are not spheres they are atoms, ions or molecules.
- Does not show forces between particles. - 9How do substances change from one state to another?Solid - Melts (Liquid)
Liquids - Boils (Gases)
Gas - Condensing (Liquid)
Liquid - Freezes (Solids)
These are called physical changes. - 10How can you reverse physical changes?By heating or cooling
- 11What are chemical reactions?During chemical reactions, bonds are broken and atoms change place.
The atoms you start the reaction with (Reactants) rearrange themselves to from different chemicals. These new chemicals are called products.
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- Year 11 Chemistry FlashCards sobre States of Matter, criado por Jaweria Khalid em 11-12-2017.
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- Jaweria Khalid
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