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PSYCHO15rus [73]
3 years ago
10

Which statement best describes why a chemical change is different from a physical change? A chemical change results in a differe

nt state of matter, and a physical change results in a new substance being formed. A chemical change is used by scientists to create new substances, and a physical change happens naturally. A chemical change results in a new substance being formed; whereas, a physical change will result in a different state of matter. A chemical change is used to identify characteristics of a substance, and a physical change identifies the behavior of a substance when in a reaction.
Biology
2 answers:
gulaghasi [49]3 years ago
6 0
A chemical change results in a new substance being formed; whereas a physical change will result in a different state of matter
elena-14-01-66 [18.8K]3 years ago
3 0

The correct answer is A chemical change results in a new substance being formed; whereas, a physical change will result in a different state of matter.

The chemical change is the change, which result in the formation of the new chemical from the reaction between different chemical(s). The physical changes does not causes change in the chemical properties of the compound. Hence, the physical change would not result in the change in the chemical substances. The physical; change can lead to the change in the physical state of the matter.

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Un mol de un gas monoatómico cuyo calor absorbido es 40.0 J y cuyo trabajo recibido es 200.0 J experimenta un cambio de energía interna de 240.0 J.

Tenemos un mol de un gas monoatómico en un recipiente con un pistón y suceden las siguientes transferencias de energía:

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Podemos calcular el cambio de energía interna del gas (ΔU) usando la siguiente fórmula.

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