Opinion? Theory? Are there options for the answer? Generally scientists are sure to keep their findings un-biased, so keeping their own personal opinions or feelings out of the research is essential. They WOULD base their knowledge on facts and Scientific Theory which is slightly different then general theory.
Zn + Cu²⁺ → Zn²⁺ + Cu
Explanation:
The overall equation of this redox reaction is combination of the two half equations. The similar species on both sides are cancelled out leaving a net overall reaction:
Zn → Zn²⁺ + 2e⁻ oxidation step
Cu²⁺ + 2e⁻ → Cu reduction step
Combining both equations:
Zn + Cu²⁺ + 2e⁻ → Zn²⁺ + 2e⁻ + Cu
since the common specie on both sides is 2e⁻, they cancel out to give an overall reaction:
Zn + Cu²⁺ → Zn²⁺ + Cu
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Redox reaction brainly.com/question/8727728
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The relative atomic mass is the weighted average mass of elements relative to 1/12th the mass of a 12-C atom.
Isotopes are atoms of the same element with different masses , in other words different numbers of neutrons.
Relative atomic mass =sum of (mass x percentage )
R.a.m = 62.9300 x 69.15% + 64.9200 x 30.85%
= 43.52 + 20.03
= 63.55 amu
Answer: Option (d) is the correct answer.
Explanation:
Endothermic process is a process in which energy or heat is absorbed by reactant species.
For example, melting of ice cubes is an endothermic process as it is absorbing heat from the surrounding and gives a cooling effect.
Thus, we can conclude that the process in which a substance gains energy is an endothermic process.
A, B, and C are insoluble in water