Barium and strontium are in Group 2 of the periodic table, below calcium.
Barium reacts with water to form barium hydroxide, Ba(OH)2\text{Ba(OH)}_2Ba(OH)2, and hydrogen gas, H2\text{H}_2H2.
Ba(s)+2H2O(l)→Ba(OH)2(aq)+H2(g) \text{Ba(s)} + 2\text{H}_2\text{O(l)} \rightarrow \text{Ba(OH)}_2\text{(aq)} + \text{H}_2\text{(g)} Ba(s)+2H2O(l)→Ba(OH)2(aq)+H2(g)Describe two observations that would be made when a small piece of barium is added to a beaker of water.
Practise Edexcel GCSE Chemistry Obtaining and using metals with exam-style questions for Foundation and Higher tier. 100 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.