Difference between revisions of "Base"

Latest revision as of 18:14, 30 November 2019

Key Stage 3

Meaning

A base is a metal compound with a pH greater than 7.

Noun: Base

Adjective: Basic

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


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.

Key Stage 4

Meaning

A base is a compound which is able to produce OH^- ions when dissolved in water to form a solution with a pH greater than 7.

About Bases

Bases are ionic compounds where there is an ionic bond between a metal and an Oxide, Carbonate or Hydroxide.

Bases will react with acids to form a salt.

Some bases are insoluble.

A soluble base will dissolves in water to produce an alkali which has Hydroxide ions which are either donated by the base or formed by a reaction with water to form a Hydroxide ion.

The Hydroxide ions in an alkali will donate electrons to Hydrogen ions to form water. This is a neutralisation reaction.

Extra Information

References

@@ Line 38: / Line 38: @@
 ==Key Stage 4==
 ===Meaning===
-A [[base]] is a [[compound]] which is able to produce [[Hydroxide Ion|OH<sup>-</sup> ions]] when [[dissolve]]d in [[water]] to form a [[solution]] with a [[pH]] greater than [[Neutral (Chemistry)|7]].
+A [[base]] is a [[compound]] which is able to produce [[Hydroxide Ion (Chemistry)|OH<sup>-</sup> ions]] when [[dissolve]]d in [[water]] to form a [[solution]] with a [[pH]] greater than [[Neutral (Chemistry)|7]].
 ===About Bases===
-: [[Base]]s are [[Ionic Compound|ionic compounds]] where there is an [[Ionic Bond|ionic bond]] between a [[metal]] and an [[Oxide]], [[Carbonate]] or [[Hydroxide]].
+: [[Base]]s are [[Ionic Compound|ionic compounds]] where there is an [[Ionic Bond|ionic bond]] between a [[metal]] and an [[Oxide]], [[Carbonate]] or [[Hydroxide Ion (Chemistry)|Hydroxide]].
 : [[Base]]s will [[Chemical Reaction|react]] with [[acid]]s to form a [[salt]].
 : Some [[base]]s are [[insoluble]].
-: A [[soluble]] [[base]] will [[dissolve]]s in [[water]] to produce an [[alkali]] which has [[Hydroxide Ion|Hydroxide ions]] which are either donated by the [[base]] or formed by a [[Chemical Reaction|reaction]] with [[water]] to form a [[Hydroxide Ion|Hydroxide ion]].
+: A [[soluble]] [[base]] will [[dissolve]]s in [[water]] to produce an [[alkali]] which has [[Hydroxide Ion (Chemistry)|Hydroxide ions]] which are either donated by the [[base]] or formed by a [[Chemical Reaction|reaction]] with [[water]] to form a [[Hydroxide Ion (Chemistry)|Hydroxide ion]].
-: The [[Hydroxide Ion|Hydroxide ion]]s in an [[alkali]] will donate [[electron]]s to [[Hydrogen Ion|Hydrogen ions]] to form [[water]]. This is a [[neutralisation]] [[Chemical Reaction|reaction]].
+: The [[Hydroxide Ion (Chemistry)|Hydroxide ion]]s in an [[alkali]] will donate [[electron]]s to [[Hydrogen Ion (Chemistry)|Hydrogen ions]] to form [[water]]. This is a [[neutralisation]] [[Chemical Reaction|reaction]].
+===Extra Information===
+{{#ev:youtube|https://www.youtube.com/watch?v=DupXDD87oHc}}
+===References===
+====AQA====
+:[https://www.amazon.co.uk/gp/product/0198359373/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359373&linkCode=as2&tag=nrjc-21&linkId=952a73bbb09d222ecc4b50d200679849 ''Bases, page 204, GCSE Biology; Third Edition, Oxford University Press, AQA '']
+:[https://www.amazon.co.uk/gp/product/1782945954/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945954&linkCode=as2&tag=nrjc-21&linkId=100574c08fbbb64318256eb79ed61a76 ''Bases, page 246, GCSE Biology, CGP, AQA '']
+:[https://www.amazon.co.uk/gp/product/1471851354/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851354&linkCode=as2&tag=nrjc-21&linkId=9012a0d354024419214fb3ad5ac44ba0 ''Bases, page 247, GCSE Combined Science Trilogy 1, Hodder, AQA '']
+:[https://www.amazon.co.uk/gp/product/1471851346/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851346&linkCode=as2&tag=nrjc-21&linkId=3ac654f4b0da781c49c855a1af4c92ea ''Bases, page 280, GCSE Chemistry, Hodder, AQA '']
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+:[https://www.amazon.co.uk/gp/product/178294639X/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=178294639X&linkCode=as2&tag=nrjc-21&linkId=51599bb45a2bfaf7c1b6a978b2ca2616 ''Bases, pages 130-132, GCSE Combined Science Trilogy; Chemistry, CGP, AQA '']
+:[https://www.amazon.co.uk/gp/product/1782945962/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945962&linkCode=as2&tag=nrjc-21&linkId=476bb5c8d1dfb5c08ac81b6d4d1c98d8 ''Bases, pages 155-157, GCSE Chemistry, CGP, AQA '']
+:[https://www.amazon.co.uk/gp/product/1782945571/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945571&linkCode=as2&tag=nrjc-21&linkId=9e29fad914244909903e5e93f8a01d56 ''Bases, pages 51, 54, GCSE Chemistry; The Revision Guide, CGP, AQA '']
+:[https://www.amazon.co.uk/gp/product/0198359381/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359381&linkCode=as2&tag=nrjc-21&linkId=47c8d1ae58d8b3a5e2094cd447154558 ''Bases, pages 92-93, 96-97, 163, GCSE Chemistry; Third Edition, Oxford University Press, AQA '']
+====Edexcel====
+:[https://www.amazon.co.uk/gp/product/1782945741/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945741&linkCode=as2&tag=nrjc-21&linkId=30da4f2178da182547b62a7329d13b57 ''Bases (acids and bases), pages 105, 107, GCSE Combined Science; The Revision Guide, CGP, Edexcel '']
+:[https://www.amazon.co.uk/gp/product/1292120193/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120193&linkCode=as2&tag=nrjc-21&linkId=572df39392fb4200db8391d98ae6314e ''Bases, page 200, GCSE Combined Science, Pearson Edexcel '']
+:[https://www.amazon.co.uk/gp/product/1292120215/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120215&linkCode=as2&tag=nrjc-21&linkId=8f96ddb76196848bafdb124354e4cf77 ''Bases, page 56, GCSE Chemistry, Pearson, Edexcel '']
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+:[https://www.amazon.co.uk/gp/product/1782945725/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945725&linkCode=as2&tag=nrjc-21&linkId=694be7494de75af3349537d34e13f7f0 ''Bases, pages 43, 45, GCSE Chemistry; The Revision Guide, CGP, Edexcel '']
+:[https://www.amazon.co.uk/gp/product/1782945741/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945741&linkCode=as2&tag=nrjc-21&linkId=30da4f2178da182547b62a7329d13b57 ''Bases; reactions of, pages 107, 109, GCSE Combined Science; The Revision Guide, CGP, Edexcel '']
+:[https://www.amazon.co.uk/gp/product/1782945725/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945725&linkCode=as2&tag=nrjc-21&linkId=694be7494de75af3349537d34e13f7f0 ''Bases; reactions of, pages 45, 47, GCSE Chemistry; The Revision Guide, CGP, Edexcel '']
+====OCR====
+:[https://www.amazon.co.uk/gp/product/1782945695/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945695&linkCode=as2&tag=nrjc-21&linkId=ceafcc80bcad6b6754ee97a0c7ceea53 ''Bases (acids and bases), pages 112, 115, Gateway GCSE Combined Science; The Revision Guide, CGP, OCR  '']
+:[https://www.amazon.co.uk/gp/product/1782945660/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945660&linkCode=as2&tag=nrjc-21&linkId=83aa4500ad7759e7f401a1c5ba5df758 ''Bases (in DNA), pages 15, 16, Gateway GCSE Biology; The Revision Guide, CGP, OCR '']
+:[https://www.amazon.co.uk/gp/product/0198359829/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359829&linkCode=as2&tag=nrjc-21&linkId=90e8d7b4f039d53035238fa0320fe00b ''Bases (not acids), pages 112, 114, 277, Gateway GCSE Chemistry, Oxford, OCR  '']
+:[https://www.amazon.co.uk/gp/product/0198359829/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359829&linkCode=as2&tag=nrjc-21&linkId=90e8d7b4f039d53035238fa0320fe00b ''Bases (nucleotides/DNA), pages 244, 245, Gateway GCSE Chemistry, Oxford, OCR  '']
+:[https://www.amazon.co.uk/gp/product/1782945695/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945695&linkCode=as2&tag=nrjc-21&linkId=ceafcc80bcad6b6754ee97a0c7ceea53 ''Bases(in DNA), page 14, Gateway GCSE Combined Science; The Revision Guide, CGP, OCR  '']
+:[https://www.amazon.co.uk/gp/product/0198359810/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359810&linkCode=as2&tag=nrjc-21&linkId=d768d99f1a06f7c12fab40e5aef85a55 ''Bases, DNA, pages 29, 163, Gateway GCSE Biology, Oxford, OCR '']
+:[https://www.amazon.co.uk/gp/product/1782945679/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945679&linkCode=as2&tag=nrjc-21&linkId=a2db42f7b4bdf10cafaafa3bb9120940 ''Bases, pages 43, 46, GCSE Chemistry; The Revision Guide, CGP, OCR Gateway '']

Difference between revisions of "Base"

Latest revision as of 18:14, 30 November 2019

Contents

Key Stage 3

Meaning

About Bases

Examples

Key Stage 4

Meaning

About Bases

Extra Information

References

AQA

Edexcel

OCR