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tiny-mole [99]
2 years ago
7

What phase change is the following substance undergoing?

Chemistry
1 answer:
Dvinal [7]2 years ago
5 0

Answer:

b melting

Explanation:

The phase change the substance is undergoing is from solid to liquid and this is called melting.

  • To understand this process, we need to know the the substance changing.
  • A substance that contains particles that are not easily compressed and packed is a solid.
  • Solids have fixed shapes and volumes.
  • Liquids can easily flow although they cannot also be easily compressed.

The phase change from solid to liquid is facilitated by a melting process.

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Question 18 (Essay Worth 8 points)
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Yes, the law of conservation of mass holds.

Explanation:

In every chemical reaction, mass is always conserved. This implies that in chemical reaction, the process proceeds maintaining the same set of atom in the same proportion without new ones forming.

  • From the description given, decomposition of the Silver carbonate will produce a silver residue with the given mass.
  • The other mass that seems lost can be examined to be given off as carbon dioxide gas which is the other product of the reaction and oxygen.
  • Therefore, since the products are silver, carbon dioxide and oxygen, the remaining mass is that of the carbon dioxide and oxygen. It is not lost.

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brainly.com/question/6837993

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