Question

A chemical reaction between two substances is called?

Answer 1

Answer:

the chemical reaction between two substances is characterized by a change in colour from Orange to green. These two substances are likely to be potassium dichromate solution and sulphur dioxide

Answer 2

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Ans: A physical change, such as a state change or dissolving, does not create a new substance, but a chemical change does. In a chemical reaction, the atoms and molecules that interact with each other are called reactants. In a chemical reaction, the atoms and molecules produced by the reaction are called products....

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