Lesson 4 - Neutralisation Flashcards
Agree and disagree, pH tells you how acidic or alkaline a solution is
Agree
Agree and disagree, pH tells you the strength of an acid or alkali
Disagree
Describe ‘neutralisation’ briefly.
A solution will be neutral if it is just the right amount, like a pH of 7. It is normally described for the reaction of acids and alkalis.
What is the product for this equation (neutralisation): sodium hydroxide + hydrochloric acid?
Sodium chloride + water
What is the product for this equation (neutralisation): nitric acid + sodium hydroxide?
sodium nitrate + water
Where does the first part of the name of the salt come from?
It comes from the name of the alkali, normally the metal inside it.
Where does the second part of the name of the salt come from?
It comes from the acid. So for example if it is hydrochloric acid, it will chloride.
What is a base (briefly)?
A base is any substance that neutralises an acid to produce salt and water. An alkali is also a soluble base. But NOT all bases are soluble or alkalis.
How could you test copper oxide is just a base and not an alkali?
Add water in - alkalis are soluble and dissolve water. If it is a base and not an alkali, it won’t dissolve.
What acid is in ‘Sulphuric Acid’?
Sulfur
What acid is in ‘Nitric acid’?
Nitrate
What is the product of this reaction (neutralisation): sodium hydroxide + hydrochloric acid?
Sodium chloride + water
What is the product of this equation (neutralisation): potassium hydroxide + potassium nitrate?
Nitric acid + water
What are 2 elements all alkalis contain?
Hydrogen and oxygen
