Term
| colour change, gas formed, solid formed, energy change |
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Definition
| signs that a chemical reaction has occurred |
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Definition
| substance that changes colour to show which chemicals are acid and which ones are alkali |
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Definition
| equipment used to crush chemicals |
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Definition
| chemical used to show the pH of substances |
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Term
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Definition
| numbers used to measure how acidic or alkaline a substance is |
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Term
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Definition
| a substance with a pH below 7 |
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Term
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Definition
| a substance with a pH above 7 |
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Term
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Definition
| a substance with a pH of 7 |
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Term
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Definition
| effect of diluting an acid with water |
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Term
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Definition
| mixing of an acid with an alkali to make a neutral solution |
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Definition
| treatment that can neutralise stomach acid |
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Term
| concentration of solutions, temperature, size of solid pieces |
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Definition
| factors affecting rate of reaction |
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Term
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Definition
| variable altered in an investigation |
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Term
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Definition
| variable altered measured as the results in an investigation |
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Definition
| result of air pollutants dissolving in rain; can kill plants and animals and damage stonework and metal structures. |
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Term
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Definition
| a treatment for acidified soil |
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