Karteikarten
C2: Acids and bases
Karten in diesem Stapel (15)
- 1What is the word equation for neutralisation?acid + base --> salt + water
- 2Substances with a pH less than 7 are?Acids
- 3Substances that have a pH higher than 7 are?Alkalis
- 4Neutral substances have a pH of?7
- 5Why does Universal Indicator show a gradual range of colour changes?Universal indicator contains a mixture of different indicators.
- 6How is the concentration of an acid determined?It is determined by the concentration of H+ ions.
- 7If acids have H+ ions what ions does a alkali have?A alkali has OH- ions (hydroxide ions).
- 8What is a base?Bases are substances the reacted with acids to neutralise them, if they are soluble in water they are called alkalis.
- 9Acid ions reacting with alkali ions, what is the equation?H+ + OH- <--> H2O
- 10What is the longer word equation for making salt, involving metal carbonate?acid + metal carbonate --> salt + water + carbon dioxide
- 11What is the salt name for sulphuric acid?The salt name is sulphate.
- 12What is the salt name for nitric acid.The salt name is nitrate.
- 13What is the salt name for hydrochloric acid?The salt name is chloride.
- 14What is the salt name for phosphoric acid?The salt name is phosphate.
- 15Salt names have two parts, which part reveals the acid it has been made from? sodium hydroxide + hydrochloric acid -> sodium chloride + water.The chloric from hydrochloric acid.
Informationen
- Beschreibung
- All information is sourced from the Collins revision textbook, GCSE OCR Gateway B Higher.
- Erstellt von
- Ella Maggs
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