Difference between revisions of "Alkali"
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==Key Stage 3== | ==Key Stage 3== | ||
===Meaning=== | ===Meaning=== | ||
| − | An [[alkali]] is a [[Metal Hydroxide]] [[solution]] that has a [[pH]] more than [[ | + | An [[alkali]] is a [[Metal Hydroxide]] [[solution]] that has a [[pH]] more than [[Neutral (Chemistry)|7]]. |
===About Alkalis=== | ===About Alkalis=== | ||
Revision as of 16:35, 28 September 2018
Key Stage 3
Meaning
An alkali is a Metal Hydroxide solution that has a pH more than 7.
About Alkalis
- Alkalis can be an Irritant, Harmful or Corrosive and should be handled with care.
- Alkalis can be used to neutralise acids.
- Alkalis can be concentrated or dilute.
- Alkalis can be weak or strong which depends on the type of alkali and the concentration.
- Alkalis turn Litmus paper blue.
- Alkalis turn Universal Indicator blue, indigo and purple depending on the strength of the alkali.
Some common Alkalis you should know: