A small piece of barium metal is added to a beaker of cold water.
Which observation is correct and complete?
A white precipitate with effervescence
A colourless solution with effervescence
A white precipitate with no effervescence
A colourless solution with no effervescence
10 exam-style questions on AQA A Level Chemistry Group 2, the alkaline earth metals, covering Group 2, the alkaline earth metals. Each one has a worked solution and a mark scheme showing where the marks go.