Question

what type of changes are observed during chemical reaction ?​

Answer 1

Answer:

A chemical reaction is usually accompanied by easily observed physical effects, such as the emission of heat and light, the formation of a precipitate, the evolution of gas, or a color change.

Explanation:

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Answer 2

Answer:

→The following changes are observed during chemical reaction :

• →The following changes are observed during chemical reaction :Change in physical state of the substance.
• →The following changes are observed during chemical reaction :Change in physical state of the substance.Change in colour observed in the substance.
• →The following changes are observed during chemical reaction :Change in physical state of the substance.Change in colour observed in the substance. Evolution of a gas appears during the reaction.
• →The following changes are observed during chemical reaction :Change in physical state of the substance.Change in colour observed in the substance. Evolution of a gas appears during the reaction.Change in temperature of the reaction mixture during the reaction.

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