Answered

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Changes of State
1
2
3
4
Solid
Liquid
Gas
Component 4B
Q1. Which one of the arrows (1,2, 3 and 4) indicates the process of freezing?
Q2. Which of the arrows indicate processes that need heat energy?
Q3. Explain what happens to the motion and the arrangement of particles when a substance undergoes
the process of melting.
Component 4C
Q1. What is the name of the process that is shown/indicated by Arrow 4?
Q2. Where in nature would you see solid ice and liquid water at the same time?
Q3. Some processes like "melting" require energy so what we need to do is heat them. Explain what you would
need to do for the processes that don't need energy like "freezing" in terms of particle energy and
arrangement.
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Sagot :

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