Indigestion Flashcards
What type of acids do our stomachs produce?
Hydrochloric acid
What does the acid in our stomach do? (2)
- kill bacteria in our food
- helps digestion, as some of the enzymes that break down our food into simpler substances only work in acidic conditions.
What happens if our stomachs produce too much acid?
We get indigestion
What do indigestion remedies contain which neutralises excess stomach acid?
Antacids
What does it mean if a liquid is neutral?
It is neither acid nor alkaline
What do antacids contain that is used to neutralise acids?
Bases
What do bases do to acids?
Neutralise them
What is a base dissolved in water called?
An alkali
Complete the word equation:
- acid + base ———>
salt + water
An antacid contains magnesium hydroxide. Write the word equation for the reaction between hydrochloric acid and magnesium hydroxide
hydrochloric acid + magnesium hydroxide ——> magnesium chloride + water
What pH do neutral liquids have?
7
Do acids have a pH more or less than 7?
Less
When an indigestion remedy is added to an acid, it neutralises some of the acid so does the pH increase or decrease?
Increase
