Question

George has four samples of substances:
Sample A: 5 kg of iron
Sample B: 2 kg of copper
Sample C: 2 kg of iron
Sample D: 5 kg of nickel
Which of the following samples have the same melting point?
Sample A and Sample C
Sample B and Sample C
Sample A and Sample B
0 Sample A and Sample D

Answer 1

Answer:

The answer to your question is sample A and sample C.

Explanation:

Melting point is a physical property of substances, physical properties do not depend on the amount of matter, so it doesn't matter that in one sample we have 5 kg and in the other we have 2 kg.

Besides in samples B and C we have the same amount of matter, they are different substances(copper and iron) so, their melting points are different.

Also, in samples A and D, we have the same amount of matter, but they are different substances so their melting points are different.

Answer 2

There are four samples of substances given. The samples that have the same melting point are Sample A and Sample C. The correct option is A.

What is the melting point?

A melting point is a condition when a solid item starts to melt. The atoms of the substance start to break down. A melting point is a chemical property that does not change with the change in the shape and quantity of the substance.

So, the melting point of iron would be the same in spite of having a different mass. Additionally, even though samples B and C have the same quantity of material (copper and iron respectively), their melting points differ.

Additionally, even if samples A and D contain the same amount of material, their melting points differ because they are made of different substances.

Thus, the correct option is A. Sample A: 5 kg of iron, Sample C: 2 kg of iron.

To learn more about melting point, refer to the below link:

https://brainly.com/question/5753603

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