What reaction takes place when manganese dioxide is heated with aluminium powder ?

(a) Write the chemical reactions taking place when : (i) Manganese dioxide is heated with aluminium powder (ii) Steam is passed over red hot iron (c ) Magnesium reacts with hot water. (b) The oxide X_(2)O_(3) is unaffacted by water. Name a method by which metal X can be obtained from its ore. Give one reason as to why have you chosen this method.

Write chemical equations for the following reactions: Cinnabar is heated in the presence of air. Manganese dioxide is heated with aluminium powder.

Write equations for the following reactions : (i) Zinc blende is heated in air (ii) Zinc carbonate is heated in the absence of air (iii) Mangnese dioxide is heated with aluminium powder

Write balanced chemical equations for the reactions taking place when a Zinc carbonate is calcinated b. Zinc sulphate is roasted. c. Zinc oxide is reduced to Zinc d. Cinnabar is heated in air. e. Manganese dioxide is heated with aluminium powder.

Write chemical equations for the following reactions: (i) Calcium metal reacts with water. (ii) Cinnabar is heated in the presence of air. (iii) Manganese dioxide is heated with aluminium powder. (b) What are alloys? List two properties of alloys.

Write chemical equations for the following reactions: (i) Calcium metal reacts with water. (ii) Cinnabar is heated in the presence of air. (iii) Manganese dioxide is heated with aluminium powder. (b) What are alloys? List two properties of alloys.

what type of reaction takes place when calcium oxide is reacted with water ?