Which of these reactions are redox reactions? Check all that apply. Cd HCl → CdCl2 H2 CuCl2 Na2S → 2NaCl CuS CaCO3 → CaO CO2 2ZnS 3O2 → 2ZnO 2SO2 CH4 2O2 → CO2 2H2O.

explanation:

venn diagram is pictorial representation with of circles showing the relation between two finite sets or things. the intersection part of two circles conveys the relation present in between those sets or things.

here in the venn diagram of sand and salt two circles represent sand and salt. but the area falling under the intersection of these circle represents the mixture of sand and salt.

so, in a venn diagram the mixture will be placed in a middle that is in between the intersection of two circles.

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so what is the problem with your lab report and whats the subject of the lab report? i will you