Answer:Sugar-water is a mixture
Explanation:
If it consists of pure sugar, it's classified as neither; however, when mixed with water, it forms a homogeneous mixture.
Response:
3:1
Explanation:
Stearic acid - C18H36O2
Fructose- C6H12O6
The energy content in food is largely proportional to the carbon content. This can be expressed as:
C18/C6 = 3 or 3:1
This illustrates why fats and oils serve as the primary energy source for the body rather than carbohydrates. This is because fats and oils contain significantly higher amounts of carbon compared to carbohydrates.
Answer:
D) Mn + Ni2+ ⇒ Mn2+ + Ni
Explanation:
A spontaneous process can occur in a specific direction without requiring any energy input from external sources. Such reactions happen naturally. In these spontaneous processes, the entropy change is positive (ΔS), the enthalpy change is negative (ΔH), and most importantly, ΔG (the change in free energy) is negative.
To identify which reaction is spontaneous, we analyze the electrode potentials of the involved species. The species with a more negative reduction potential can displace the other from its aqueous solution. In this case, since the reduction potential for Mn^2+ is -1.19 V compared to nickel's -0.25 V, manganese will thus naturally displace Ni^2+ from solution as indicated in the solution above.
