(a(i))[1]
Which negative ion has the greatest mass in $1000\,\text{cm}^3$ of fruit juice?
(a(ii))[1]
State the ionic formulae present in ammonium sulfate.
(a(iii))[1]
Find the mass of sodium ions in $200\,\text{cm}^3$ of fruit juice.
(b)[2]
Describe a test used to detect lithium ions.
(c)[2]
State the names of two other elements found in most fertilisers.
(d)[1]
Select by circling the pH of orange juice. pH 4, pH 7, pH 10, pH 13
(e)[2]
Give the names of two compounds used to reduce soil acidity.
(f(i))[2]
Describe how the molecules in hydrogen chloride gas are arranged and how far apart they are.
(f(ii))[3]
Initially, the blue litmus paper stays blue rather than turning red. After a little while, it does turn red. Explain these observations using the kinetic particle model.