I need help with chemical reactions

How do they work?

3 answers

Here's how:
If two substances react and the temperature of the mixture decreases, the reaction is endothermic. If two substances react and the temperature of the mixture increases, the reaction is exothermic. A chemical reaction involves the breaking of bonds in the reactants and the forming of bonds in the product. But In order for the reaction to occur, the reactants need to come into contact with one another. If the temperature changes say, it rises then the frequency of collision between the reactants or molecules increases because their speed increases and the chance of collision increases as well. Some examples of Chemical reactions are Burning coal, wood, paper, etc. Formation of curd from milk. Electrolysis of water to form hydrogen and oxygen. and Rusting of iron. Some exothermic reactions are the thermite reaction. the reaction between water and calcium chloride. the reaction between sodium sulfite and bleach. Some Endothermic reactions are Melting ice cubes. Evaporating water. turning frost into water vapor.
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Is @looollll_kid_ur_bad correct I need help
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