The ____ scale tells us how acidic or alkaline a substance is. A pH of ____ is neutral. A pH of 14 is ____ and a pH of ____ is acidic. Universal ____ changes ____ in the different types of substance. When we add an acid and an alkali together we make a ____ and water. You can change the salt that you make by changing the ____ that you use. The ionic equation that is happening when you add an acid and an alkali together is: H+ + OH- → H2O. The ions released by acids are called ____ ions and the ____ released by alkalis are called ____ ions.

Neutralisation reactions

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