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Four metal F, G, H and J were each separately added to cold water, hot water and steam. The table below is a summary of the observations made and the formulae of the hydroxides formed.

      

Four metal F, G, H and J were each separately added to cold water, hot water and steam. The table below is a summary of the observations made and the formulae of the hydroxides formed.
20hydroxidetable482017827.jpg
a) Which two elements are likely to be in the same group of the periodic table?
b) Arrange the metals in the order of their reactivity starting with the most reactive.

  

Answers


John
a) F and J

b) H, F, J, G
johnmulu answered the question on April 10, 2017 at 08:23


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