Chemistry: Acids bases and salts key infomation

What do acids release?

Hydrogen ions (H⁺) when in a solution

What is a base?

A substance that can neutralise an acid and form a salt.

What do bases produce?

Hydroxide ions (OH^-) when in a solution

Is an acid a proton (hydrogen ion) doner or acceptor

A doner

Is a base a (hydogen ion) doner or acceptor

An acceptor

What is the pH scale?

A measure of the concentration of hydrogen ions, H⁺ (aq) in solution.

What does the pH scale go from

0 to 14

What colour does litmus SOLUTION turn in an acid

Red

What colour does litmus SOLUTION turn in a nuteral

Purple

What colour does litmus SOLUTION turn in an alkali

Blue

What colour does phenolphthalein turn in a acid

Colourless

What colour does phenolphthalein turn in a nuteral

Colourless

What colour does phenolphthalein turn in an alkaline

Pink

What colour does methyl orange turn in a acid

Red

What colour does methyl orange turn in a neuteral

Yellow

What colour does methyl orange turn in an alkaline

Yellow

What colour does red litmus paper turn in an acidic solution

Stays red

What colour does red litmus paper turn in a neuteral solution

Stays red

What colour does red litmus paper turn in an alkaline solution

Turns blue

What colour does blue litmus paper turn in an acid solution

Turns red

What colour does blue litmus paper turn in a neuteral solution

Stays blue

What colour does blue litmus paper turn in an alkaline solution

Stays blue

What is neuteralisation

The reaction between an acid and a base

What is a redox reaction

the reaction of a metal and an acid which forms a salt and hydrogen

What does metal hydroxide and an acid form

salt and water

What does metal oxide and an acid form

salt and water

What does metal carbonate and an acid form

salt, water and carbon dioxide

what does ammonia and an acid form

ammonium salt

What is a salt

an ionic compound that is formed when an acid and base react