Answer:
when earthquakes are ready strong the ground almost liquefies. There was a pirate trading post on an island and they experienced an earthquake so strong entire buildings were 'swallowed' by sand.
Explanation:
I read a book about it awhile back sorry I couldn't recall the exact location of the island(I think it was in the Caribbean but I'm not sure)
Answer:
✓no change in the composition of the platinum could be detected
Answer : The value of for this reaction is 36.18 kJ
Explanation :
First law of thermodynamic : It states that the energy can not be created or destroyed, it can only change or transfer from one state to another state.
As per first law of thermodynamic,
where,
= internal energy of the system
q = heat added or rejected by the system
w = work done
As we are given that:
q = 38.65 kJ
w = -2.47 kJ (system work done on surrounding)
Now put all the given values in the above expression, we get:
Therefore, the value of for this reaction is 36.18 kJ
Answer: The formic acid is 3.5 times stronger than acetic acid.
Explanation:
The strength of an acid depends on its acid dissociation constant.
For a hypothetical monoprotic acid HA, the dissociation equilibrium is:
More is the value of , greater is the dissociation and stronger is the acid.
Thus formic acid is 3.5 times stronger than acetic acid.
It allows scientists to visualize the molecule they are working with more vividly.
It also allows them to see the ratio of atoms It contains which further allows
scientist to find the proportions of chemicals to mix together to maximize the
efficiency of a chemical reaction.