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C5 Acids, bases and salts - Coggle Diagram
C5 Acids, bases and salts
Properties of acids
Acids have pH values of below 7, have a sour taste and are corrosive
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Acids are substances that can neutralise a base, forming a salt and water
When acids react, they will lose electrons to form positively charged hydrogen ions (H+)
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Properties of bases
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Bases are substances which can neutralise an acid, forming a salt and water
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When alkalis react, they gain electrons to form negative hydroxide ions (OH–)
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Bases and acids
When they react with an acid,a neutralisation reaction occurs
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The pH scale
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All acids have pH values of below 7, all alkalis have pH values of above 7
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Universal indicator
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A drop is added to the solution and the colour is matched with a colour chart which indicates the pH which matches specific colours
Acid: yellow, beige, orange, pink, red, brown
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Alkaline: turquoise, pale blue, blue, dark blue, violet, purple
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Proton transfer
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In terms of proton transfer, we can further define each substance in how they interact with protons
Bases (Alkalis)
Bases (alkalis) are proton acceptors as they ionize in solution producing OH– ions which can accept protons
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Acids
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Acids are proton donors as they ionize in solution producing protons, H+ ions
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