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Definition
| A substance that changes colour to visually show how acidic or alkaline a solution is. |
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Definition
| A solution with a pH less than 7. |
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Definition
| A solution with a pH more than 7. |
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| A pH indicator that is a mixture of different chemical indicators that changes colour to show the approximate pH of a solution on a scale from 0 to 14. |
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Definition
| A pH indicator that is magenta in alkali but colourless in acid. |
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| A pH indicator that is blue in alkali but red in acid. |
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Definition
| Compounds made from a metal joined with oxygen. When these dissolve in water they form alkaline solutions. |
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Definition
| Compounds made from a non - metal joined with oxygen. When these dissolve in water they form acidic solutions. |
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Definition
| A solution with a pH equal to 7. |
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Definition
| A common laboratory acid with chemical formula HCl. |
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Definition
| A common laboratory acid with chemical formula HNO3. |
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Definition
| A common laboratory acid with chemical formula H2SO4. |
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Definition
| A substance that can neutralise an acid. Metal oxides, metal hydroxides and metal carbonates. |
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Definition
| A soluble base e.g. sodium hydroxide. |
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Definition
| A reaction of an acid with a base. |
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Definition
| A substance formed in a neutralisation reaction. |
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Definition
| The method of separating an insoluble solid from a solution. |
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Definition
| The method of separating a soluble solid from a solution. |
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Definition
| An alkaline solution which turns from clear to cloudy when carbon dioxide is present. |
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Definition
| An experiment that is carried out to accurately measure the volumes of two reacting solutions. It is commonly used in reactions involving acids and soluble bases. |
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Term
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Definition
| A specialist piece of equipment used to measure the volume of a liquid accurately. |
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Term
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Definition
| A specialist piece of equipment used to measure the volume of a liquid accurately. |
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