Difference between revisions of "Base"
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==Key Stage 3== | ==Key Stage 3== | ||
===Meaning=== | ===Meaning=== | ||
| − | A [[base]] is a [[metal compound]] with a [[pH]] greater than [[Neutral (Chemistry)|7]]. | + | A [[base]] is a [[metal]] [[compound]] with a [[pH]] greater than [[Neutral (Chemistry)|7]]. |
: [[Noun]]: '''Base''' | : [[Noun]]: '''Base''' | ||
Revision as of 10:52, 4 January 2019
Key Stage 3
Meaning
A base is a metal compound with a pH greater than 7.
About Bases
- A base can be Harmful, Irritant or corrosive.
- Bases can neutralise an acid.
- Many bases are insoluble solids.
- A base can be a:
- Metal Hydroxides are soluble bases known as 'Alkalis'.
Examples
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| Drain cleaner is around pH 14. | Oven cleaner is around pH 13.5. | Toilet cleaner is around pH 12. |
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| Baking soda is around pH 9.5. | Sea water is around pH 8. | Blood is around pH 7.4. |