C1.10 Indigestion: Full Summary (Edexcel)
- Your stomach produces hydrochloric acid which kills bacteria on your food.
- The stomach digests your food. (Digests-Breaking down food.)
- Sometimes the stomach produces too much acids,which causes indigestion.
- The reaction between an acid and a base is called a neutralisation reaction: Acid + Base ==> Salt + Water
- ✱ Some bases are soluble, only a base dissolved in water is called an alkaline.
- If an Antacid contains a carbonate Carbon dioxide (CO2) is produced. eg. Acid + Base ==> Salt + Water + Carbon Dioxide
- Eg. HCL +CaCO3 ==> Cacl2 + H20 + CO2
- Acid and Alkalines are descirbed using a pH Scale.
- Liquids can be investigated using an indicator. Eg. Universal indicator turns red for acids, green for neutral and purple for alkalines.
- Litmus is another indicator.
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