Chemistry

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what ion is produced by all acids in aqueous solutions?
H+/ hydrogen ions
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what ion is produced by all bases in aqueous solutions?
OH-/ hydroxide ions
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what is the pH of a neutral solution?
7
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Do alkalis have a pH of more than 7?
yes- alkalis can have a pH of 8-14
4 of 8
How can universal indicator be used to estimate the pH of a solution?
add universal indicator to the solution, compare the colour of the solution to a universal indicator colour chart. Acids will turn the universal indicator red/orange/yellow, alkalis will turn purple/blue. Neutral solutions will turn green.
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name the indicators and which indicator produces which colour change:
indicator-acidic/neutral/alkaline
methyl orange-red/yellow/yellow
phenolphthalein-colourless/colourless/pink
litmus-red/purple/blue
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How is water formed in a neutralisation reaction?
H+ + OH---> H2O
7 of 8
What is the equation that forms a salt?
metal hydroxide+acid--> salt+water
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Other cards in this set

Card 2

Front

what ion is produced by all bases in aqueous solutions?

Back

OH-/ hydroxide ions

Card 3

Front

what is the pH of a neutral solution?

Back

Preview of the front of card 3

Card 4

Front

Do alkalis have a pH of more than 7?

Back

Preview of the front of card 4

Card 5

Front

How can universal indicator be used to estimate the pH of a solution?

Back

Preview of the front of card 5
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