The co-efficients in balanced equations represent the number of moles reacting and being produced, it is rare that this exact ratio will be used in a reaction. For example, some reactants can be ...

The second step calculated the amount of reactant by considering the mole ratio between product and reactant. It could take students a long time to understand these two steps before answering the ...

Aluminium can be obtained from aluminium ore (Al 2 O 3) by a process called electrolysis. Oxygen is also produced by this reaction. The balanced equation for this process is: \(\mathbf{2} ...