Term
| What are the 5 points of the Particle Theory of Matter? |
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Definition
1. All matter is made up of tiny particles that have empty spaces between them.
2. Particles are in constant motion.
3. As temperature rises, the particles start moving faster.
4. Different substances are made up of different types of particles.
5. Particles attract each other. |
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Term
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Definition
| A substance that is made up of only one type of particle. |
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Term
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Definition
A pure substance that can't be broken down into a simpler chemical substance by any physical or chemical means.
Neon = Ne
Carbon = c |
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Term
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Definition
a pure substance composed of 2 or more different types of particles.
water = H2O
salt = NaCl |
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Definition
| a substance that is made up of atleast 2 different types of particles. |
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Definition
| a mixture in which you can distinguish between different types of matter |
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Term
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Definition
| a uniform mixture of 2 or more substances; note that if a liquid or gas is clear it's a solution, but if its cloudy or murky it's a mechanical mixture. |
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Term
| PHYSICAL PROPERTIES & CHEMICAL PROPERTIES |
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Definition
p.p = a characteristic of a sbustance that can be determined without changing the compostion of that substance.
c.p= a characteristic of a substance that is determined when the compostion of the new substance is changed and one or more new substances are produced |
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Term
| PHYSICAL CHANGES & CHEMICAL CHANGES |
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Definition
p.c = a change in which the compostion of the substance remains unaltered and no new substances are produced
c.c = a change in the starting substance and the production of one or more new substances |
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Term
| 5 signs of chemical change |
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Definition
1. change in colour
2. change in odour
3. bubbles are visible by not adding heat (gas production)
4. a new solid is seen (precipitate productin)
5. a change in temperature or light (energy change) |
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Term
| CHRACTERISTIC PHYSICAL PROPERTIES |
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Definition
| a physical property is unique to a substance and that can be used to identify the substance |
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Term
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Definition
| the temperature at which a substance changes rapidly from a liquid to a gas |
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Definition
| the temperature at which a substance changes state from a solid to a liquid |
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Definition
| the temperature at which a substance changes from a liquid to a solid |
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Term
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Definition
| a measure of how much mass is contained in a given unit volume of a substance |
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