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What are chemical reactions?

Explore the basics of chemical reactions in standard-grade chemistry. Learn how mixing two substances can lead to new substances, unlike physical processes. Discover what defines a chemical reaction and how it differs from changes of state or dissolution. 8 Relevant

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What are chemical reactions?

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  1. What are chemical reactions? Standard Grade Chemistry Topic 1: Chemical reactions

  2. It’s something that happens when you mix two chemicals together. Any substance can take part in a chemical reaction, but it has to be mixed with the right thing. Burning something or dissolving something are both examples of chemical reactions. What is a chemical reaction?

  3. Is it a chemical reaction?

  4. Definition A chemical reaction is a change which produces one or more new substances.

  5. Some help to tell… • It is often very difficult (or impossible) to get the original substance back again. • Changes of state and dissolving are NOT chemical reactions. • These are PHYSICAL PROCESSES.

  6. It’s something that happens when you mix two chemicals together. Any substance can take part in a chemical reaction, but it has to be mixed with the right thing. Burning something or dissolving something are both examples of chemical reactions. What is a chemical reaction?

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