Acids, Alkalis and the pH scale
This video is about acids, alkalis and the pH scale and is for end of Key Stage Three revision (Year 9). The video gives examples of acids and alkalis and shows how universal indicator can be used with the pH scale to identify the strength of different acids and alkalis.

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![PIRANHA ACID - The MOST AGGRESSIVE ACID I've ever worked with [𝟰𝗞] | JJChemistry](https://i.ytimg.com/vi/zjRX80hkGRo/hqdefault.jpg?sqp=-oaymwEjCNACELwBSFryq4qpAxUIARUAAAAAGAElAADIQj0AgKJDeAE=&rs=AOn4CLCnj3bBuQWBJgeHNhxK0fR2A7Q74g)
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