G8 Synthesis and Analysis - Alkalis

Gapfill exercise

Enter your answers in the gaps. When you have entered all the answers, click on the "Check" button.

Alkalis are used to treat heartburn and indigestion. They are sometimes called .
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 ions to the water - these are what make the solution alkaline.

In a neutralisation reaction, the ions from the acid react with the ions from the alkali and together they make . The remaining ions make the .