Name the change in state when a gas turns into a liquid
condensation
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What is the freezing point of water?
0 degree Celsius
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Which two states of matter have the ability to flow?
liquid and gas.
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Describe the movement of liquid particles
in liquid, particles are close to each other and they move around one another.
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How strongly do the particles attract in case of solid, liquid and gas?
Very strong attraction in solid, slightly less attraction in liquid and very weak attraction in gas.
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What happens to the movement of particles when a substance is heated.
The particles move faster and further away from each other.
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15
Use the particle theory to explain why the shape of a piece of metal in its solid state doesn't change when you press it hard?
The particles of the solid are closely packed to each other and there is no room between the particles. So, solids don't have the ability to be compressed.
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5
name the change of state when a liquid turns into gas.
evaporation
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What are the three states of matter?
solid, liquid and gas
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Which state of matter can be easily compressed?
gas
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How can we know if a certain solid we have is pure or a mixture of different substances?
if it melts at a specific temperature, it is pure. However, if it melts over a range of temperatures, it is a mixture.
