A precision steel instrument was stored inside a sealed glass cabinet containing a open dish of anhydrous calcium chloride. After several months of storage in a humid warehouse, the steel instrument showed no signs of rust.
Explain why the steel instrument did not rust under these conditions.
Practise Edexcel GCSE Chemistry Transition metals, alloys and corrosion with exam-style questions for Foundation and Higher tier. 97 questions, matched to the Edexcel GCSE Chemistry (1CH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.
