Acid alkaline yayyayayayaaaaa

Cards (12)

what is a acid
A substance which its PH is lower than 7
What is a alkali/base?
A substance which its PH is higher than 7
How do you differentiate the colours of acids and alkalis?
Use litmus paper- if it turns red, it is acidic. If it turns blue, it is an alkali
What is the colour of PH7? 
green
What are some examples of Acids?
Vinegar, lemon juice, hydrochloric acid.
What are some examples of alkali?
Soap, toothpaste, baking soda
What is neutralisation?
Neutralisation is a chemical reaction between an acid and a alkali that results in salt and water.
Hydrochloric acid + sodium hydroxide = ?
water + sodium chloride
Sodium hydroxide + citric acid = ?
Sodium citrate
What are Indicators?
Colours from plants that change in color when mixed with differemt types of substances (e.g tumeric, red cabbage and beetroot)
What is a Litmus?
It is a type of indicator that helps you recognise if which substances are acids or alkali.
What is Neutralisation?
The reaction between an acid and a base to form a salt and water.