Difference between revisions of "Acid"
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: When an [[acid]] is [[dissolve]]d in [[solution]] the [[Hydrogen]] [[atom]]s in the [[molecule]] become free to move around and these are what make it an [[acid]]. | : When an [[acid]] is [[dissolve]]d in [[solution]] the [[Hydrogen]] [[atom]]s in the [[molecule]] become free to move around and these are what make it an [[acid]]. | ||
: [[Acid]]s can be [[concentrated]] or [[dilute]]. | : [[Acid]]s can be [[concentrated]] or [[dilute]]. | ||
| − | : [[Acid]]s can be [[weak]] or [[strong]] which depends on the type of [[acid]] and the [[concentration]]. | + | : [[Acid]]s can be [[Weak Acid|weak]] or [[Strong Acid|strong]] which depends on the type of [[acid]] and the [[concentration]]. |
: [[Acid]]s turn [[Litmus]] paper red. | : [[Acid]]s turn [[Litmus]] paper red. | ||
: [[Acid]]s turn [[Universal Indicator]] pink, red, orange or yellow depending on the strength of the [[acid]]. | : [[Acid]]s turn [[Universal Indicator]] pink, red, orange or yellow depending on the strength of the [[acid]]. | ||
Revision as of 10:57, 28 September 2018
Key Stage 3
Meaning
An acid is a chemical dissolved in water that has a pH less than 7.
About Acids
- Acids can be an Irritant, Harmful or Corrosive and should be handled with care.
- When an acid is dissolved in solution the Hydrogen atoms in the molecule become free to move around and these are what make it an acid.
- Acids can be concentrated or dilute.
- Acids can be weak or strong which depends on the type of acid and the concentration.
- Acids turn Litmus paper red.
- Acids turn Universal Indicator pink, red, orange or yellow depending on the strength of the acid.
Some common Acids you should know:
- Hydrochloric Acid - Found in the stomach.
- Citric Acid - Found in Citrus fruits.
- Ethanoic Acid - The common name for vinegar.
- Sulphuric Acid - Found in Electrical Cells.