Name the cause of change that takes place during the bending of an iron rod to make an iron grill.
Hence, the cause of this change is applied force.
When a green iron salt is heated strongly, its colour finally changes to brown and odour of burning sulphur is given out.
(a) Name the iron salt.
(b) Name the type of reaction that takes place during the heating of iron salt.
(c) Write a chemical equation for the reaction involved.
Which of the following are physical changes?
(i) Melting of iron metal
(ii) Rusting of iron
(iii) Bending of an iron rod
(iv) Drawing a wire of iron metal
Name the cause of change that takes place during the conversion of water into hydrogen and oxygen.
When a green salt is heated strongly it's colour finally changes to brown and odour of sulphur is given out.
i) Name the iron salt.
ii) Name the type of reaction that takes place during the heating of iron salt.
iii) Write the chemical equation for the reaction involved.
10(a). Name the cause of change which take place during the conversion of ice into water.