Question

write the signs of a chemical reaction (i) Color Change (ii) A gas given off (iii) Order Of Reactivity​

Answer 1

Answer:

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Answer 2

Explanation:

There are five signs of a chemical change:

1. Color Change.
2. Production of an odor.
3. Change of Temperature.
4. Evolution of a gas (formation of bubbles)
5. Precipitate (formation of a solid)