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lapo4ka [179]
3 years ago
15

Do pure substances have the same chemical and physical properties

Chemistry
1 answer:
Darya [45]3 years ago
4 0
No, some impurities may alter the observed effects of a chemical reaction.. during a reaction other products may be produced, they may alter the MP or BP of the pure substance.  
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A catalyst can cause a reaction to occur that does not normally happen at room temperature by reducing the activation energy needed to undergo the reaction.

<h3>What is a catalyst?</h3>

Catalysts are substances, often enzymes, used to speed up or commence a chemical reaction. They do this by reducing the necessary energy amount needed to begin the reaction, known as activation energy, or simply by changing the way in which the reaction takes place, which can allow for a reaction to take place even at <u>room temperature </u>when it would otherwise not occur.  

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