Question

1. Baking soda and vinegar 2 Copper sulphate and iron 3. Barium chloride and sulphuric acid 4. Zinc and sulphuric acid 5. Zinc and copper sulphate​

Answer 1

Answer:

1. Baking soda and vinegar

When baking soda is mixed with vinegar, something new is formed. The mixture quickly foams up with carbon dioxide gas. If enough vinegar is used, all of the baking soda can be made to react and disappear into the vinegar solution.Sodium bicarbonate and acetic acid reacts to carbon dioxide, water and sodium acetate.

2.Copper sulphate and iron

Iron displaces copper ions from an aqueous solution of copper sulphate. It is a single displacement reaction of one metal by another metal. ... Thus iron is more reactive than copper. In this reaction, metallic iron is converted into ferrous ion (Fe2+) and cupric ion (Cu2 +) is converted into metallic copper.

3.Barium chloride and sulphuric acid

When dilute sulphuric acid is added to barium chloride solution, barium sulphate is formed as a precipitate and hydrogen chloride is formed in aqueous solution. Explanation: According to the law of conservation of mass, mass can neither be created nor be destroyed.

4.Zinc and sulphuric acid

when zinc reacts with dilute sulphuric acid, Zinc sulphate is formed & Hydrogen gas is evolved. Zn (s) + H 2 SO 4 (g) → ZnSO 4 (s) + H 2 (Zinc) (dil. Laboratory method receiving of hydrogen.

5.Zinc and copper sulphate

When zinc is added to copper sulphate (CUSO4) solution due to more reactivity of zinc, cooper is replaced by the zinc and forms zinc sulphate. During the process, the colour of the solution changes from blue to colourless.

Hope it helps you mate

Sarangheo ♡