Which statement best describes what happens during a chemical change? a.Both the identity and the properties of a substance change. b.Some properties of a substance change, but its identity remains the same. c.The chemical properties of a substance change, but its physical properties remain the same. d.The physical properties of a substance change, but its chemical properties remain the same. this really isn't my subject in school
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for me it's b as we can see in most cases some properties change but the physical appearance remains same
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Out of the given 4 options, the correct option is option a. During a chemical reaction both the identity and the properties of a substance change.
Chemical reaction between two substances occurs to form a new substance which is completely different.
Therefore, it has different appearance and physical state as well as the chemical properties. This does not happen in physical change.
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