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Tamiku [17]
3 years ago
5

Why does a solid change to liquid when heat is added?

Chemistry
1 answer:
steposvetlana [31]3 years ago
7 0
When a solid is heated, the particles are given more energy and start to vibrate faster. at a certain temperature, the particles vibrate so much that there order structure breaks down. at this point the solid melts into liquid
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Answer:

see explanation...

Explanation:

                               Mg⁺²-24                     Co⁺³-60                     Clˉ-35    

Protons (p⁺)                12                                 27                             17              

Neutrons (n⁰)             12                                 33                             18              

Electrons (eˉ)             10                                 24                             18              

                                  (c)                                 (b)                            (a)

                         12/2 : 12/2 : 10/2      27/3 : 33/3 : 24/3        #n⁰ = 18

                             6    :    6   :    5          9  :   11  :   8             #eˉ = 18

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