Question

A metal ribbon X when ignited burns with a bright light and forms a white powder Y. The powder on dissolution in water forms a product Z .This product Z changes the colour of itmus paper. i) Identify X,Y,Z. ii) What happens when product Z is Treated with red litmus paper .Give reason for the observation. iii) Write balanced chemical equations involved in the formation of Z.

Answer 1

Answer:

1) X- magnesium ribbon

  Y- MAGNESIUM OXIDE

  Z- MAGNESIUM HYDROXIDE

2) THE MAGNESIUM HYDROXIDE IS TREATED WITH RED LITMUS PAPER BECAUSE IT IS BASIC IN NATURE AS MAGNESIUM OXIDE IS BASIC. THE OBSERVATION IS THAT THE RED LITMUS PAPER IS TURNED INTO BLUE

3) MGO (s) + H20 (l) = MG(OH)2 (aq)

Explanation:

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