How is science used by a firefighter
1 answer:
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Answer: 1)
2)
3)
4)
Explanation:
According to the Bronsted-Lowry conjugate acid-base theory, an acid is defined as a substance which looses donates protons and thus forming conjugate base and a base is defined as a substance which accepts protons and thus forming conjugate acid.
1)
Here, is loosing a proton, thus it is considered as an acid and after losing a proton, it forms
which is a conjugate base.
2)
Here, is loosing a proton, thus it is considered as an acid and after losing a proton, it forms
which is a conjugate base.
3)
Here, is loosing a proton, thus it is considered as an acid and after losing a proton, it forms
which is a conjugate base.
4)
Here, is loosing a proton, thus it is considered as an acid and after losing a proton, it forms
which is a conjugate base.
Answer : The enthalpy change for the reaction is 1043 kJ/mol.
Explanation :
The given chemical reaction is:
As we know that:
The enthalpy change of reaction = E(bonds broken) - E(bonds formed)
Given:
= 1074 kJ/mol
= 499 kJ/mol
= 802 kJ/mol
Now put all the given values in the above expression, we get:
Therefore, the enthalpy change for the reaction is 1043 kJ/mol.