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if there is 8 g of a substance before a physical change, how much will there be afferwards

Sagot :

Answer:

The correct answer is 8 g.

Explanation:

During a physical change, the identity of the substance does not change, because no chemical reaction occurs. So, after the change, the amount of substance is still the same. Examples of physical changes are changes in the state of matter (solid-liquid-gas). If 8 grams of ice (water in the solid-state) are melted, after the melting process we will have 8 grams of water in the liquid-state, but still 8 grams of water.