Amass of 200 grams (g) of solid iron is heated at a high temperature until the iron has completely melted. what is the mass of the liquid after heating?

The correct answer is - 200 gm.

Explanation:

Heating the solid iron at very high temperature will lead it to the change it form by melting after a certain point of temperature. Solid iron is nothing but the tightly attached atoms of the iron without any other component( if pure).

Due to changing its form after melting the mass will remain same as there is a change in the state of the matter which is solid to melted.

Thus, the correct answer is - 200 gm.

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answer: 45

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