BrainGeek2654 BrainGeek2654

13-02-2021
Chemistry

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Consider the reaction of common thermite: aluminum powder is mixed with iron oxides. What are 4 signs of a chemical reaction

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kobenhavn kobenhavn

15-02-2021

Answer:

Chemical reaction is a reaction in which there is a change in the chemical composition and thus new substances are formed.

The characteristics of chemical reaction are :

1. Evolution of a gas

2. Formation of a precipitate

3. Absorption or evolution of heat

4. Change in colour

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