Chemistry form 5 chapter 3: Thermochemistry

I need help …
I just need one example for question 1… others all I will do by myself … I need the exposure! :pleading_face::pleading_face::cry::sob: Help me and give me some tips on how to solve this question :pray::pray::pray::pray:

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Hi , this is my answer for question no.1

  1. When 10 \mathrm{~g} of zinc is added to 100 \mathrm{~cm}^{3} of aqueous solution of lead (II) ions, the temperature of the reaction mixture rises 13^{-} \mathrm{C}. Calculate the heat change of the reaction.
    (specific heat capacity of the solution =4.2 \mathrm{~g}^{-1 \mathrm{C}} \mathrm{C}^{-1} )


Thank you so much …:pray::pray::pray::pray::pray::pray::pleading_face::cry:

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You are welcome!:partying_face::partying_face::smiling_face_with_three_hearts::smiling_face_with_three_hearts::grinning_face_with_smiling_eyes::grinning_face_with_smiling_eyes::+1::+1: