Answer: Option (d) is the correct answer.
Explanation:
A metal which has the largest size and the most valence electrons would have the highest conductivity because the larger is the size of a metal the more freely electrons can move in it. Hence, the metal can conduct electricity.
If the atom is smaller in size then the electrons will be tightly held around the nucleus and hence they won't be able to move freely. Therefore, they will not conduct electricity.
Thus, we can conclude that the atom with the largest radius and the most valence electrons would have the highest conductivity.
Answer:
Zinc, hydrochloric acid
Explanation:
A metal plus an acid equals a salt plus water
Standard entropy of the compounds of interest are as follows,
= 212.1 J/K.mol
= 205.0 J/K.mol
= 213.6 J/K.mol
= 69.9 J/K.mol
Now for the reaction:
C6H12O6(s) + 6O2(g) —->6CO2(g) + 6H2O(l)
ΔS°reaction = ∑
- ∑
∴ ΔS°reaction =( 6
+ 6
) - (
+ 6
= 205.0 J/K.mol)
∴ ΔS°reaction = [6 (213.6) + 6 (69.9 )] - [(212.1) + 6(205.0)]
∴ ΔS°reaction = 258.9
the answer is A) Cold water is more dense than warm water
I forget how to do this but I hope it’s right lol