G8 Synthesis and Analysis - Alkalis
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Alkalis are used to treat heartburn and indigestion. They are sometimes called
antacids
hydrogen
hydroxide
salt
water
.
Some chemical antacids are soluble in water - they are called alkalis.
What makes a solution alkaline?
Alkalis are ionic solids. They are made from metal ions and hydroxide ions. When they dissolve they add
antacids
hydrogen
hydroxide
salt
water
ions to the water - these are what make the solution alkaline.
Neutralisation.
In a neutralisation reaction, the
antacids
hydrogen
hydroxide
salt
water
ions from the acid react with the
antacids
hydrogen
hydroxide
salt
water
ions from the alkali and together they make
antacids
hydrogen
hydroxide
salt
water
. The remaining ions make the
antacids
hydrogen
hydroxide
salt
water
.
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