Difference between revisions of "Base"
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|[[File:DrainCleaner.png|center|200px]] | |[[File:DrainCleaner.png|center|200px]] | ||
|[[File:OvenCleaner.png|center|200px]] | |[[File:OvenCleaner.png|center|200px]] | ||
| − | |[[File: | + | |[[File:ToiletCleaner.png|center|200px]] |
|- | |- | ||
| − | | style="height:20px; width:200px; text-align:center;" | | + | | style="height:20px; width:200px; text-align:center;" |Drain cleaner is around [[pH]] 14. |
| − | | style="height:20px; width:200px; text-align:center;" | | + | | style="height:20px; width:200px; text-align:center;" |Oven cleaner is around [[pH]] 13.5. |
| − | | style="height:20px; width:200px; text-align:center;" | | + | | style="height:20px; width:200px; text-align:center;" |Toilet cleaner is around [[pH]] 12. |
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|[[File:Bicarbonateofsoda.png|center|200px]] | |[[File:Bicarbonateofsoda.png|center|200px]] | ||
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|[[File:BloodDrop.png|center|200px]] | |[[File:BloodDrop.png|center|200px]] | ||
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| − | | style="height:20px; width:200px; text-align:center;" | | + | | style="height:20px; width:200px; text-align:center;" |Baking soda is around [[pH]] 9.5. |
| − | | style="height:20px; width:200px; text-align:center;" | | + | | style="height:20px; width:200px; text-align:center;" |Sea water is around [[pH]] 8. |
| − | | style="height:20px; width:200px; text-align:center;" | | + | | style="height:20px; width:200px; text-align:center;" |Blood is around [[pH]] 7.4. |
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Revision as of 16:53, 28 September 2018
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. |
 |
 |
 |
| Baking soda is around pH 9.5. | Sea water is around pH 8. | Blood is around pH 7.4. |