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C3-Learning Checklist:Acids (3.1/3.4/3.5 (Acids (Acids only contain…
C3-Learning Checklist:Acids
3.1/3.4/3.5
Acids
Acids only contain hydrogen ions. The amount of hydrogen Ions affect how acidic a solution is
Alkali
Alkalis only contain Hydroxide ions. The amount of Hydroxide Ions affect how Alkaline a solution is
If a solution has the hydrogen ion concentration increase by a factor of 10,the pH of the solution decreases by 1
3.2
Alkalis
A alkali solution has a pH of 8 and above
Neutral
A neutral solution has a pH of 7
Acidic
A acidic solution has a pH of 6 and below
3.3
Litmus
Effects of acids
Acidic solutions (acids) turn blue litmus paper red
Effects of Alkalis
Alkaline solutions (bases) turn red litmus paper blue
methyl orange
Effects of acids
n acidic environments, it turns red and in basic environments, or pH of 4.4 and higher, it turns yellow..
phenolphthalein
Effects of acids
When it reacts with a weal acidic solution it turns colourless when it reacts with a stronger acidic solution it turns pink/red when it reacts with bases it turns yellow
Strong acids contain many hydrogen ions, the higher concentration of hydrogen ions the more acidic the solution is
Strong alkalis contain many hydroxide ions the higher concentration of hydroxide ions the more alkaline a solution is
What are alkalis
a compound with particular chemical properties including turning litmus blue and neutralizing or effervescing with acids; typically, a caustic or corrosive substance of this kind such as lime or soda.Often contrasted with acid and base.
What are bases
bases are substances that, in aqueous solution, release hydroxide ions, are slippery to the touch, can taste bitter if an alkali, change the color of indicators, react with acids to form salts, promote certain chemical reactions
Bailley Derbyshire