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Acids and Alkalis
Acid and Alkali test
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Cards (12)
Red Litmus paper was placed into a solution.
The red litmus paper turned a blue colour.
This means that the solution is...
alkaline
Describe an indicator
Different indicators change colour
at
different pH levels.
Magnesium Oxide + Hydrochloric acid =
magnesium chloride
+
water
Which equipment is used to accurately measure the mass of a solid?
Balance
A solution is stored in a bottle with a corrosive hazard symbol on it. This solution is...
Strongly acid
or
strongly alkaline
What technique is sued to separate water from copper sulfate solution?
Evaporation
Universal Indicator would be more appropriate to measure pH that litmus paper because....
Universal Indicator tells you
precisely
which
pH
from
1
-
14
whereas litmus paper only tells you about how
acidic
or
alkaline.
Describe a salt
When the
hydrogen
in an
acid
is
replaced
by a
metal.
What is the difference between pH 1 and pH 3?
pH 1 is
100
times
more acidic
that pH 3
State what the arrow in a word equation represents
A chemical reaction taking place
_____+ _________= calcium chloride + water + carbon dioxide
carbonate +
hydrochloric acid
Write a word equation to show the neutralisation reaction between sodium hydroxide and nitric acid
sodium hydroxide + nitric acid =
sodium nitrate
+
water
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