Chemistry 3a
It is reaction where oxygen is added
What is oxidation?
The gas made when a metal reacts with an acid
What is hydrogen?
The acid used to make sulphates
What is sulphuric?
The products of the reaction between iron oxide + carbon
What are iron and carbon dioxide?
It is the relative formula mass of water
What is 18?
What is the range of the pH scale?
The gas made when a carbonate reacts with an acid
What is carbon dioxide?
A metal that is more reactive than magnesium but less reactive than lithium
What is calcium?
The metals that is more reactive than carbon and therefore needs to be extracted by electrolysis
What is aluminium?
It is the relative formula mass of carbon dioxide
What is 44?
It is 7 on the pH scale?
What is neutral?
The ion in all acids
What is H+?
The positive electrode during electrolysis
What is the anode?
What is 10?
It is the number of atoms in CaCO3
What is 5?
A liquid or solution used during electrolysis
What is an electrolyte?
The ion in all alkalis?
What is OH-?
The cathode
What is the negative electrode during electrolysis?
Vinegar and citric are examples
What are weak acids?
It is measured in g/dm3
What is concentration measured in?
The salt made when sodium hydroxide and hydrochloric acid neutralise each other
What is sodium chloride
The acid used to make nitrates
What is nitric?
Reactions that remove oxygen
What is reduction?
They are fully ionised
What makes a strong acid strong?
It means dissolved in water
What is aqueous?