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(Solved): 1. What is the difference between an element and a compound? 2. How does a catalyst affect a chemica ...


1. What is the difference between an element and a compound?
2. How does a catalyst affect a chemical reaction?
3. What is the significance of the octet rule in chemical bonding?
4. Explain the concept of pH and its importance in chemistry.

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Here's the difference between them:
   An element is a pure substance that cannot be broken down into simpler substances by chemical means. Elements are composed of atoms, and each element is characterized by a unique atomic number, which correspond...
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