What is an acid?
A substance with a pH less than 7.
What is an alkali?
A base which is soluble in water.
What is a base?
A substance which has a pH higher than 7.
Which ion is found in acids?
Hydrogen ions (H+ ions)
Which ion is found in alkalis?
Hydroxide ions (OH- ions)
What is the formula of hydrochloric acid?
What is the formula of sulfuric acid?
What is the formula of nitric acid?
What is the formula of sodium hydroxide?
What is the formula of sodium oxide?
What type of substance is sodium oxide?
Complete the following general equation:
acid + metal oxide (base) →
salt + water
Complete the following equation:
copper oxide + nitric acid →
copper nitrate + water
Which acid do you use to make nitrate salts?
Which acids do you use to make sulfate salts?
Which acid to you use to make chloride salts?
Why do we add an excess of base when using an insouble base?
To ensure that all the acid has reacted.
How do we remove the excess solid base?
What do we need to add to an acid and alkali to identify when they have neutralised each other?