The table given below shows the reactions of metals with the solutions of metal salts, Reaction of Metal X with: Reaction of Metal Y with: Reaction of Metal Z with X sulphate → No reaction X sulphate → No reaction X sulphate → No reaction Y sulphate → Displaces Y Y sulphate → No reaction Y sulphate → Displaces Y Z sulphate → Displaces Z Z sulphate → No reaction Z sulphate → No reaction a) On the basis of your observation of the data given above, arrange the metals X, Y, and Z in order of increasing reactivity and justify your answer. b) Will copper react with a salt solution of zinc chloride? give reason for your answer
Answers
Answer:
this your answer plz make me as brainlieast
Answer:
1. Why should a magnesium ribbon be cleaned before it is burnt in air?
Ans: Magnesium is an very reactive metal. When stored, it reacts with oxygen to form a layer of magnesium oxide on its surface. This layer of magnesium oxide is quite stable and prevents further reaction of magnesium with oxygen. The magnesium ribbon is cleaned by sand paper for removing this layer so that the underlying metal can be exposed to air.
2. Write the balanced equation for the following chemical reactions.
(a) Hydrogen + Chlorine → Hydrogen chloride
(b) Barium chloride + Aluminium sulphate → Barium sulphate + Aluminium chloride
(c) Sodium + Water → Sodium hydroxide + Hydrogen
Ans: (a) H2 (g) + Cl2 (g) → 2HCl (g)
(b) 3BaCl2 (s) + Al2(SO4)3 (s) → 3BaSO4(s) + 2AlCl3 (s)
(c) (c) 2Na(s) + 2H2O (l) → 2NaOH (aq) + H2 (g)