Bromine oxidises trioxothiosulphate Anion S203^2- to tetraoxosulphaate vi anion under acidic conditions and is itself reduced to bromide anion. Write balanced ionic equations for the
Oxidation step
Reduction step
Overall equation

Imagine that you have produced several versions of lactase, each of which differs from normal lactase by a single amino acid. describe a test that could indirectly determine which of the versions significantly alters the three-dimensional shape of the lactase protein.

Calculate the molar mass of aluminum oxide (al2o3). express your answer to four significant figures.

Which of the following electromagnetic waves can create ions?