Question

pls answers my 5 question ​

Answer 1

Answer:

8. NaHCO3 + HCl ----> 2NaCl + H2O + 2CO2

9. Silver chloride on exposure to sunlight causes it to decompose to for silver and chlorine. Since light coloured bottles cause direct exposure to sunlight and uses the following reaction:

2AgCl ----> 2Ag + Cl2

10. Oxidising agent is H2O.

11. AB + CD ----> AD + CB

    Na2SO4(aq) + BaCl2(aq) ----> 2NaCl(aq) + BaSO4(ppt.)

12. Nitrogen prevents food from getting in contact with O2 and prevents rancidity.

Answer 2

Answer:

HEY MATE HERE'S YOUR ANSWER,

8) NaHCO3+ HCl --> NaCl+ H2O + CO2

9) We store silver chloride in dark colored bottles because it reacts with sunlight and decomposes to form Silver and Chlorine gas, so to prevent this it is stored in dark coloured bottles. This type of reaction is known as Photolytic Decomposition reaction.

10) H2O is the oxidising agent here, as it provides Oxygen to Iron(Fe) to form Fe3O4.

11) The general chemical equation of a double displacement reaction is-

AB+CD --> AC+BD.

12) Potato chips' manufacturers fill the packet of chips with nitrogen gas because Nitrogen prevents the oxidation of fats and oils present in the chips. Nitrogen is a less reactive gas which stops the contents of the packet from reacting/decomposing. If they filled the packet with air or oxygen then the food will break down overtime and get decomposed, and thus the potato chips would get inedible. Thus the packets are filled with Nitrogen Gas.

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