Question

state the various characteristics of chemical reactions

Answer 1

Characteristics of Chemical Reactions. In its simplest form, a chemical reaction is the process that results in the change of one set of substances into another. Chemical reactions are either spontaneous, which means they require no energy input, or they are nonspontaneous, which means they need a catalyst.

Answer 2

Explanation:

Evolution of gas.

Formation of precipitate.

Change in colour.

Change in temperature.

Change of state.

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