Edexcel C1 Topic 3

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What is the name of the chemical reaction when an acid reacts with a base?

Neutralisation
What is the chemical formula for hydrochloric acid?

HCl
Why do we have acid in the stomach?

To help digest food and kill bacteria
How is indigestion caused?

Excess acid in the stomach
What are the typical products when an acid reacts with a metal carbonate?

Salt, carbon dioxide and water
Name the salt produced when sodium reacts with hydrochloric acid.

Sodium Chloride
Name the salt produced when magnesium reacts with sulphuric acid.

Magnesium Sulphate
What are the products when you react an acid with a metal hydroxide?

Salt and water
Why do farmers use calcium hydroxide on their soil?

Calcium hydroxide is an alkali which neutralises the acidic soil
What does electrolysis mean?

Splitting up compounds using electricity
Which 2 products are produced during the electrolysis of hydrochloric acid?

Hydrogen and Chlorine
What is the chemical test for hydrogen gas?

A lighted splint goes 'squeaky pop'
What is the chemical test for oxygen?

A glowing splint relights
What is the chemical test for chlorine?

Damp litmus paper is bleached white